Step-by-step derivation
S001 · implies
Before
source roles = [pval-product-additivity]
After
derived = [[p, a, b, valuation_a, valuation_b, product, valuation_product, sum_of_valuations, additivity, infinity_convention]]
Conditions: none
List the complete source field order and mode-specific roles without JavaScript or answer-shape inference;No,undefined and infinity retain their distinct meanings.
Step identifiers and dependencies
Rule: source_ordered_fields_without_JS · Uses: G001
S002 · calculation
Before
Valuation ORIGINAL a ORIGINAL division step1 := div(225, 5)
After
Valuation ORIGINAL a ORIGINAL division step1 = 45
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S001
S003 · calculation
Before
Valuation ORIGINAL a dividing prime power1 := mul(1, 5)
After
Valuation ORIGINAL a dividing prime power1 = 5
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S002
S004 · implies
Before
source roles = [Valuation ORIGINAL a, 5, 225, 225, 1]
After
derived = [45, 5, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S003
S005 · calculation
Before
Valuation ORIGINAL a ORIGINAL division step2 := div(45, 5)
After
Valuation ORIGINAL a ORIGINAL division step2 = 9
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S004
S006 · calculation
Before
Valuation ORIGINAL a dividing prime power2 := mul(5, 5)
After
Valuation ORIGINAL a dividing prime power2 = 25
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S005
S007 · implies
Before
source roles = [Valuation ORIGINAL a, 5, 225, 45, 2]
After
derived = [9, 25, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S006
S008 · calculation
Before
Valuation ORIGINAL a terminal factorization product := mul(25, 9)
After
Valuation ORIGINAL a terminal factorization product = 225
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S007
S009 · implies
Before
source roles = [Valuation ORIGINAL a, 5, 225, 225, 2, 9, [5, 25]]
After
derived = [225, 4, Yes, Yes]
Conditions: none
At termination p does not divide the unit,so p^(k+1) does not divide |a| and k is maximal.A sign does not affect divisibility;the factorization is for |a|,not negative a equalling a positive product.
Step identifiers and dependencies
Rule: Valuation_terminal_NONdivisible_unit_highest_power · Uses: G001, S008
S010 · calculation
Before
Valuation ORIGINAL b ORIGINAL division step1 := div(10, 5)
After
Valuation ORIGINAL b ORIGINAL division step1 = 2
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S009
S011 · calculation
Before
Valuation ORIGINAL b dividing prime power1 := mul(1, 5)
After
Valuation ORIGINAL b dividing prime power1 = 5
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S010
S012 · implies
Before
source roles = [Valuation ORIGINAL b, 5, 10, 10, 1]
After
derived = [2, 5, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S011
S013 · calculation
Before
Valuation ORIGINAL b terminal factorization product := mul(5, 2)
After
Valuation ORIGINAL b terminal factorization product = 10
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S012
S014 · implies
Before
source roles = [Valuation ORIGINAL b, 5, -10, 10, 1, 2, [5]]
After
derived = [10, 2, Yes, Yes]
Conditions: none
At termination p does not divide the unit,so p^(k+1) does not divide |a| and k is maximal.A sign does not affect divisibility;the factorization is for |a|,not negative a equalling a positive product.
Step identifiers and dependencies
Rule: Valuation_terminal_NONdivisible_unit_highest_power · Uses: G001, S013
S015 · calculation
Before
Valuation ORIGINAL a times b := mul(225, -10)
After
Valuation ORIGINAL a times b = -2250
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S014
S016 · calculation
Before
Valuation ACTUAL product ORIGINAL division step1 := div(2250, 5)
After
Valuation ACTUAL product ORIGINAL division step1 = 450
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S015
S017 · calculation
Before
Valuation ACTUAL product dividing prime power1 := mul(1, 5)
After
Valuation ACTUAL product dividing prime power1 = 5
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S016
S018 · implies
Before
source roles = [Valuation ACTUAL product, 5, 2250, 2250, 1]
After
derived = [450, 5, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S017
S019 · calculation
Before
Valuation ACTUAL product ORIGINAL division step2 := div(450, 5)
After
Valuation ACTUAL product ORIGINAL division step2 = 90
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S018
S020 · calculation
Before
Valuation ACTUAL product dividing prime power2 := mul(5, 5)
After
Valuation ACTUAL product dividing prime power2 = 25
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S019
S021 · implies
Before
source roles = [Valuation ACTUAL product, 5, 2250, 450, 2]
After
derived = [90, 25, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S020
S022 · calculation
Before
Valuation ACTUAL product ORIGINAL division step3 := div(90, 5)
After
Valuation ACTUAL product ORIGINAL division step3 = 18
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S021
S023 · calculation
Before
Valuation ACTUAL product dividing prime power3 := mul(25, 5)
After
Valuation ACTUAL product dividing prime power3 = 125
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S022
S024 · implies
Before
source roles = [Valuation ACTUAL product, 5, 2250, 90, 3]
After
derived = [18, 125, 0, Yes]
Conditions: none
Divide only when the current unit is divisible by p.Each step preserves |a|=p^k*unit and strictly decreases the positive unit,so it terminates.Derived integers do not inherit the raw-input1e6 cap.
Step identifiers and dependencies
Rule: Valuation_EACH_division_source_remainder_and_factor_invariant · Uses: G001, S023
S025 · calculation
Before
Valuation ACTUAL product terminal factorization product := mul(125, 18)
After
Valuation ACTUAL product terminal factorization product = 2250
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S024
S026 · implies
Before
source roles = [Valuation ACTUAL product, 5, -2250, 2250, 3, 18, [5, 25, 125]]
After
derived = [2250, 3, Yes, Yes]
Conditions: none
At termination p does not divide the unit,so p^(k+1) does not divide |a| and k is maximal.A sign does not affect divisibility;the factorization is for |a|,not negative a equalling a positive product.
Step identifiers and dependencies
Rule: Valuation_terminal_NONdivisible_unit_highest_power · Uses: G001, S025
S027 · calculation
Before
Valuation ORIGINAL exponent addition := sum(2, 1)
After
Valuation ORIGINAL exponent addition = 3
Conditions: none
Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S026
S028 · implies
Before
source roles = [5, 225, -10, 2, 1, 9, 2]
After
derived = [-2250, 3, 3, Yes]
Conditions: none
For nonzero factors write a=±p^r*u,b=±p^s*v.Primality and Euclid lemma keep uv indivisible by p,so the exact exponent is r+s.If either factor is0,the product is0 and the same infinity convention applies.A derived product may reach1e12 while remaining SAFE;do not reapply the raw1e6 bound.
Step identifiers and dependencies
Rule: Valuation_GENERAL_product_primeness_unit_product_or_zero · Uses: G001, S027