Step-by-step derivation
S001 · calculation
Before
quotient ring parent modulus divided by ideal generator := div(15, 5)
After
quotient ring parent modulus divided by ideal generator = 3
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001
S002 · implies
Before
same declared parent Z_15;generator d=5;n/d=3;ideal multiples=[0, 5, 10]
After
I=kernel of residue map Z_15 to Z_5;proper two-sided ideal=Yes;zero ideal allowed when d=n
Conditions: none
Since d divides n,changing an integer representative by n does not change mod d.The map π:Z_n→Z_d is well-defined and preserves addition and multiplication.Its kernel consists of multiples of d,closed under differences and multiplication on either side by parent elements.With d≥2 it excludes1 and is proper;d=n gives the allowed zero ideal.
Step identifiers and dependencies
Rule: quotient_ring_actual_parent_proper_two_sided_ideal · Uses: G001, S001
S003 · implies
Before
complete parent residues=[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14];same ideal I=[0, 5, 10]
After
all additive cosets in representative order0..d-1=[[0, 5, 10], [1, 6, 11], [2, 7, 12], [3, 8, 13], [4, 9, 14]];quotient size=5;no field conclusion
Conditions: none
List every parent element congruent mod d in each additive coset,ordered by representatives0 through d−1.They are disjoint and cover Z_n.Quotient elements are whole cosets;class labels are indices only,and a finite quotient ring is not automatically a field.
Step identifiers and dependencies
Rule: quotient_ring_full_cosets_not_representative_carrier · Uses: G001, S002
S004 · calculation
Before
representative slot0 input class exact quotient fraction := div(3, 5)
After
representative slot0 input class exact quotient fraction = 3/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S003
S005 · implies
Before
representative slot0 input class:integer value=3;positive modulus=5;exact ratio=3/5
After
floor quotient=0;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S004
S006 · calculation
Before
representative slot0 input class quotient multiple := mul(0, 5)
After
representative slot0 input class quotient multiple = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S005
S007 · calculation
Before
representative slot0 input class canonical nonnegative residue := sub(3, 0)
After
representative slot0 input class canonical nonnegative residue = 3
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S006
S008 · calculation
Before
representative slot1 input class exact quotient fraction := div(2, 5)
After
representative slot1 input class exact quotient fraction = 2/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S007
S009 · implies
Before
representative slot1 input class:integer value=2;positive modulus=5;exact ratio=2/5
After
floor quotient=0;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S008
S010 · calculation
Before
representative slot1 input class quotient multiple := mul(0, 5)
After
representative slot1 input class quotient multiple = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S009
S011 · calculation
Before
representative slot1 input class canonical nonnegative residue := sub(2, 0)
After
representative slot1 input class canonical nonnegative residue = 2
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S010
S012 · calculation
Before
representative slot2 input class exact quotient fraction := div(8, 5)
After
representative slot2 input class exact quotient fraction = 8/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S011
S013 · implies
Before
representative slot2 input class:integer value=8;positive modulus=5;exact ratio=8/5
After
floor quotient=1;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S012
S014 · calculation
Before
representative slot2 input class quotient multiple := mul(1, 5)
After
representative slot2 input class quotient multiple = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S013
S015 · calculation
Before
representative slot2 input class canonical nonnegative residue := sub(8, 5)
After
representative slot2 input class canonical nonnegative residue = 3
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S014
S016 · calculation
Before
representative slot3 input class exact quotient fraction := div(7, 5)
After
representative slot3 input class exact quotient fraction = 7/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S015
S017 · implies
Before
representative slot3 input class:integer value=7;positive modulus=5;exact ratio=7/5
After
floor quotient=1;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S016
S018 · calculation
Before
representative slot3 input class quotient multiple := mul(1, 5)
After
representative slot3 input class quotient multiple = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S017
S019 · calculation
Before
representative slot3 input class canonical nonnegative residue := sub(7, 5)
After
representative slot3 input class canonical nonnegative residue = 2
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S018
S020 · calculation
Before
first representative change := sub(3, 8)
After
first representative change = -5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S019
S021 · calculation
Before
second representative change := sub(2, 7)
After
second representative change = -5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S020
S022 · calculation
Before
first representative change divided by d := div(-5, 5)
After
first representative change divided by d = -1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S021
S023 · calculation
Before
second representative change divided by d := div(-5, 5)
After
second representative change divided by d = -1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S022
S024 · implies
Before
original representative choices=[3, 2, 8, 7];class labels in slot order=[3, 2, 3, 2];changes a-a_prime=-5;b-b_prime=-5
After
integer ideal multiples=[-1, -1];corresponding INPUT cosets agree
Conditions: none
First require the corresponding representatives to denote the same two input cosets.A mismatch is a failed premise,not a counterexample to well-definedness.Integer differences divided by d explicitly witness membership in the same ideal.
Step identifiers and dependencies
Rule: quotient_well_defined_input_cosets_are_premise · Uses: G001, S023
S025 · calculation
Before
representative choice0 addition integer addition := sum(3, 2)
After
representative choice0 addition integer addition = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S024
S026 · calculation
Before
representative choice0 addition parent mod n exact quotient fraction := div(5, 15)
After
representative choice0 addition parent mod n exact quotient fraction = 1/3
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S025
S027 · implies
Before
representative choice0 addition parent mod n:integer value=5;positive modulus=15;exact ratio=1/3
After
floor quotient=0;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S026
S028 · calculation
Before
representative choice0 addition parent mod n quotient multiple := mul(0, 15)
After
representative choice0 addition parent mod n quotient multiple = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S027
S029 · calculation
Before
representative choice0 addition parent mod n canonical nonnegative residue := sub(5, 0)
After
representative choice0 addition parent mod n canonical nonnegative residue = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S028
S030 · calculation
Before
representative choice0 addition quotient class mod d exact quotient fraction := div(5, 5)
After
representative choice0 addition quotient class mod d exact quotient fraction = 1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S029
S031 · implies
Before
representative choice0 addition quotient class mod d:integer value=5;positive modulus=5;exact ratio=1
After
floor quotient=1;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S030
S032 · calculation
Before
representative choice0 addition quotient class mod d quotient multiple := mul(1, 5)
After
representative choice0 addition quotient class mod d quotient multiple = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S031
S033 · calculation
Before
representative choice0 addition quotient class mod d canonical nonnegative residue := sub(5, 5)
After
representative choice0 addition quotient class mod d canonical nonnegative residue = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S032
S034 · implies
Before
representative choice0 addition:original parent representatives=[3, 2];integer result=5;parent modulus=15
After
parent result=5;quotient class label=0;class modulus=5
Conditions: none
Operate in the specified parent modulo n,then take the quotient class modulo d.These fields can differ;do not conflate their residues or confuse a class label with its full coset.
Step identifiers and dependencies
Rule: quotient_operation_parent_result_separate_from_class · Uses: G001, S033
S035 · calculation
Before
representative choice0 multiplication integer multiplication := mul(3, 2)
After
representative choice0 multiplication integer multiplication = 6
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S034
S036 · calculation
Before
representative choice0 multiplication parent mod n exact quotient fraction := div(6, 15)
After
representative choice0 multiplication parent mod n exact quotient fraction = 2/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S035
S037 · implies
Before
representative choice0 multiplication parent mod n:integer value=6;positive modulus=15;exact ratio=2/5
After
floor quotient=0;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S036
S038 · calculation
Before
representative choice0 multiplication parent mod n quotient multiple := mul(0, 15)
After
representative choice0 multiplication parent mod n quotient multiple = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S037
S039 · calculation
Before
representative choice0 multiplication parent mod n canonical nonnegative residue := sub(6, 0)
After
representative choice0 multiplication parent mod n canonical nonnegative residue = 6
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S038
S040 · calculation
Before
representative choice0 multiplication quotient class mod d exact quotient fraction := div(6, 5)
After
representative choice0 multiplication quotient class mod d exact quotient fraction = 6/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S039
S041 · implies
Before
representative choice0 multiplication quotient class mod d:integer value=6;positive modulus=5;exact ratio=6/5
After
floor quotient=1;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S040
S042 · calculation
Before
representative choice0 multiplication quotient class mod d quotient multiple := mul(1, 5)
After
representative choice0 multiplication quotient class mod d quotient multiple = 5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S041
S043 · calculation
Before
representative choice0 multiplication quotient class mod d canonical nonnegative residue := sub(6, 5)
After
representative choice0 multiplication quotient class mod d canonical nonnegative residue = 1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S042
S044 · implies
Before
representative choice0 multiplication:original parent representatives=[3, 2];integer result=6;parent modulus=15
After
parent result=6;quotient class label=1;class modulus=5
Conditions: none
Operate in the specified parent modulo n,then take the quotient class modulo d.These fields can differ;do not conflate their residues or confuse a class label with its full coset.
Step identifiers and dependencies
Rule: quotient_operation_parent_result_separate_from_class · Uses: G001, S043
S045 · calculation
Before
representative choice1 addition integer addition := sum(8, 7)
After
representative choice1 addition integer addition = 15
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S044
S046 · calculation
Before
representative choice1 addition parent mod n exact quotient fraction := div(15, 15)
After
representative choice1 addition parent mod n exact quotient fraction = 1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S045
S047 · implies
Before
representative choice1 addition parent mod n:integer value=15;positive modulus=15;exact ratio=1
After
floor quotient=1;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S046
S048 · calculation
Before
representative choice1 addition parent mod n quotient multiple := mul(1, 15)
After
representative choice1 addition parent mod n quotient multiple = 15
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S047
S049 · calculation
Before
representative choice1 addition parent mod n canonical nonnegative residue := sub(15, 15)
After
representative choice1 addition parent mod n canonical nonnegative residue = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S048
S050 · calculation
Before
representative choice1 addition quotient class mod d exact quotient fraction := div(0, 5)
After
representative choice1 addition quotient class mod d exact quotient fraction = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S049
S051 · implies
Before
representative choice1 addition quotient class mod d:integer value=0;positive modulus=5;exact ratio=0
After
floor quotient=0;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S050
S052 · calculation
Before
representative choice1 addition quotient class mod d quotient multiple := mul(0, 5)
After
representative choice1 addition quotient class mod d quotient multiple = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S051
S053 · calculation
Before
representative choice1 addition quotient class mod d canonical nonnegative residue := sub(0, 0)
After
representative choice1 addition quotient class mod d canonical nonnegative residue = 0
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S052
S054 · implies
Before
representative choice1 addition:original parent representatives=[8, 7];integer result=15;parent modulus=15
After
parent result=0;quotient class label=0;class modulus=5
Conditions: none
Operate in the specified parent modulo n,then take the quotient class modulo d.These fields can differ;do not conflate their residues or confuse a class label with its full coset.
Step identifiers and dependencies
Rule: quotient_operation_parent_result_separate_from_class · Uses: G001, S053
S055 · calculation
Before
representative choice1 multiplication integer multiplication := mul(8, 7)
After
representative choice1 multiplication integer multiplication = 56
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S054
S056 · calculation
Before
representative choice1 multiplication parent mod n exact quotient fraction := div(56, 15)
After
representative choice1 multiplication parent mod n exact quotient fraction = 56/15
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S055
S057 · implies
Before
representative choice1 multiplication parent mod n:integer value=56;positive modulus=15;exact ratio=56/15
After
floor quotient=3;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S056
S058 · calculation
Before
representative choice1 multiplication parent mod n quotient multiple := mul(3, 15)
After
representative choice1 multiplication parent mod n quotient multiple = 45
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S057
S059 · calculation
Before
representative choice1 multiplication parent mod n canonical nonnegative residue := sub(56, 45)
After
representative choice1 multiplication parent mod n canonical nonnegative residue = 11
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S058
S060 · calculation
Before
representative choice1 multiplication quotient class mod d exact quotient fraction := div(11, 5)
After
representative choice1 multiplication quotient class mod d exact quotient fraction = 11/5
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S059
S061 · implies
Before
representative choice1 multiplication quotient class mod d:integer value=11;positive modulus=5;exact ratio=11/5
After
floor quotient=2;quotient<=ratio<quotient+1
Conditions: none
Take the exact rational quotient and its floor q,not the rational division result as a residue.With positive modulus,q≤value/m<q+1,so subtraction of qm yields a residue from0 through m−1.
Step identifiers and dependencies
Rule: modular_Euclidean_floor_not_rational_division_result · Uses: G001, S060
S062 · calculation
Before
representative choice1 multiplication quotient class mod d quotient multiple := mul(2, 5)
After
representative choice1 multiplication quotient class mod d quotient multiple = 10
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S061
S063 · calculation
Before
representative choice1 multiplication quotient class mod d canonical nonnegative residue := sub(11, 10)
After
representative choice1 multiplication quotient class mod d canonical nonnegative residue = 1
Conditions: none
Compute exactly from original roles and established intermediates,retaining indices,signs,denominators and the operation's carrier.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S062
S064 · implies
Before
representative choice1 multiplication:original parent representatives=[8, 7];integer result=56;parent modulus=15
After
parent result=11;quotient class label=1;class modulus=5
Conditions: none
Operate in the specified parent modulo n,then take the quotient class modulo d.These fields can differ;do not conflate their residues or confuse a class label with its full coset.
Step identifiers and dependencies
Rule: quotient_operation_parent_result_separate_from_class · Uses: G001, S063
S065 · implies
Before
ANY changes a-a_prime,b-b_prime in same two-sided ideal I;actual addition classes=[0, 0];actual multiplication classes=[1, 1]
After
(a+b)-(a_prime+b_prime)=(a-a_prime)+(b-b_prime) in I;ab-a_prime*b_prime=a*(b-b_prime)+(a-a_prime)*b_prime in I;both universal operation obligations=Yes
Conditions: none
Closure of I handles the additive difference;left/right absorption and addition handle the multiplicative difference.Thus any legal representative changes preserve both cosets.The two recomputations instantiate the result;universal well-definedness comes from this ideal argument,not merely two matching samples.
Step identifiers and dependencies
Rule: quotient_ring_universal_representative_independence_not_two_samples · Uses: G001, S064