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R0019-10300 · q-20261003-r06-function-graph-0100
The declared domain is D={42, 43} and codomain is B={14, 15, 16}. Is the ordered-pair set {(42, 14), (43, 15), (44, 14)} exactly the graph of a total function D→B?
G001 — The declared domain is D={42, 43} and codomain is B={14, 15, 16}. Is the ordered-pair set {(42, 14), (43, 15), (44, 14)} exactly the graph of a total function D→B?Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate.
Before
raw domain=[42, 43]
After
sorted distinct declared domain=[42, 43]
Conditions: none
The domain is the declared finite integer subset,not automatically all R.The input list must already be distinct.The first coordinate is input,the second output.
Rule: function_graph_declared_domain_scope · Uses: G001
Before
codomain=[14, 15, 16];raw pair rows=[[42, 14], [43, 15], [44, 14]]
After
ordered-pair set=[[42, 14], [43, 15], [44, 14]]
Conditions: none
This protocol treats the graph as a set:deduplicate identical pairs,but retain different y values at one x.This differs from a raw-row protocol requiring one original row per input.
Rule: graph_set_duplicate_pairs_count_once · Uses: G001, S001
Before
pair=[42, 14];domain=[42, 43];codomain=[14, 15, 16]
After
both coordinates typed=Yes
Conditions: none
Every pair must lie in D×B.Do not ignore outside-domain or outside-codomain pairs after finding legal points for some inputs.
Rule: graph_every_pair_type_guard · Uses: G001, S002
Before
pair=[43, 15];domain=[42, 43];codomain=[14, 15, 16]
After
both coordinates typed=Yes
Conditions: none
Every pair must lie in D×B.Do not ignore outside-domain or outside-codomain pairs after finding legal points for some inputs.
Rule: graph_every_pair_type_guard · Uses: G001, S003
Before
pair=[44, 14];domain=[42, 43];codomain=[14, 15, 16]
After
both coordinates typed=No
Conditions: none
Every pair must lie in D×B.Do not ignore outside-domain or outside-codomain pairs after finding legal points for some inputs.
Rule: graph_every_pair_type_guard · Uses: G001, S004
Before
declared input=42;normalized pair set=[[42, 14], [43, 15], [44, 14]]
After
distinct output fiber=[14];count=1
Conditions: none
Each declared input needs exactly one distinct output.At most one point gives single-valuedness,not totality.
Rule: graph_each_declared_input_exactly_one · Uses: G001, S005
Before
declared input=43;normalized pair set=[[42, 14], [43, 15], [44, 14]]
After
distinct output fiber=[15];count=1
Conditions: none
Each declared input needs exactly one distinct output.At most one point gives single-valuedness,not totality.
Rule: graph_each_declared_input_exactly_one · Uses: G001, S006
Before
all pair type flags=[Yes, Yes, No];source fiber sizes=[1, 1]
After
total function graph=No
Conditions: none
Typing and totality are joint conditions.An empty domain with an empty graph is valid,but extra outside pairs are not.The valid empty function does not require a nonempty codomain.
Rule: total_graph_type_and_totality_joint_gate · Uses: G001, S007
S008 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S007 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S006 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S005 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S004 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S003 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S002 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.S001 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.No
The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.
Review date: 2026-10-26
Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.
input commit: 0f7be61e2c22317a4075561dc822c87d881a50dboriginal question SHA-256: 7d50d31302ba5253d9c3310da69414a9674d1f085586181a7d47df7351387368candidate record SHA-256: 74e2f1b71c3edfb5ecfad0d43fbe7439ef1d821e6dfb5c24332dc8927251eb5csemantic review receipt SHA-256: eeb35dc5daab92234bf72827627392b47f38ead4cfb574d4373bebc43c09fbf5question-first witness SHA-256: 3cf8e0d3a00b0df1994db2bfde81f4a31b382e170bdda83ea3d0b68da64e8419Lean: NOT_RUN · human review: NOT_PERFORMED