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Question 7201: Complete Domain, Codomain, Graph, and Range Inventory

On this page
  1. Original question and givens
  2. Definition and scope
  3. Step-by-step derivation
  4. Reverse checks
  5. Result
  6. This question review and source binding

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R0013-07201 · q-20261011-advance-20261015-r03-domain-codomain-range-0001

Original question and givens

Fin(0)=∅ is the source and Fin(0)=∅ the codomain; complete typed images=[] are indexed from 0. All entries must be typed, even unused ones. Give ([n,m], all ordered [x,images[x]] rows, increasing range, unused codomain, range size).

  • G001 — Fin(0)=∅ is the source and Fin(0)=∅ the codomain; complete typed images=[] are indexed from 0. All entries must be typed, even unused ones. Give ([n,m], all ordered [x,images[x]] rows, increasing range, unused codomain, range size).

Definition and scope

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.

Step-by-step derivation

S001 · implies

Before

declared types Fin(0)→Fin(0);0-based source labels

After

domain,codomain and actual range remain distinct

Conditions: none

Fin(0) is empty;a complete total table is not a partial program function,and its actual range need not equal its declared codomain.This audits finite data,not general infinite-set theorems.

Step identifiers and dependencies

Rule: typed_domain_codomain_data_scope · Uses: G001

S002 · implies

Before

complete graph=[]

After

range=[];unused codomain=[];range size=0

Conditions: none

The range is the deduplicated output set,while declared n and m still fix domain and codomain sizes.A smaller range does not shrink the codomain.

Step identifiers and dependencies

Rule: typed_graph_range_inventory · Uses: G001, S001

Reverse checks

  • 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.

Result

([0, 0], [], [], [], 0)

The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.

This question review and source binding

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.

Source hashes and review receipts
  • input commit: 0f7be61e2c22317a4075561dc822c87d881a50db
  • original question SHA-256: ee55dfe058504dca1327b24b06c9b32593d89cd77896d510694257edc464b939
  • candidate record SHA-256: ba15a34db26953c2c1894de0b25c393ebfcb93c06aa96fc37cfc6517a2c9fd5f
  • semantic review receipt SHA-256: e89fc6d4a50a4a7fc942c6c8939a92f835e30105a9a5850e37dd198f31c1ed59
  • question-first witness SHA-256: 0e1039f4cf022bf35af4e5531651c9a2b7ca7a5fdacac34fb1e4bcd9a81f6299
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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