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Question 5239: Two Finite Principal-Filter Composition Images

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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R0009-05239 · q-20261008-advance-20261011-r07-tends-to-relation-0089

Original question and givens

The complete total map f:Fin(8)→Fin(8) has images=[7, 6, 5, 4, 3, 2, 1, 0] indexed from 0; Fin(8)={0,…,7}. Every table entry must lie in the target type. S=[0, 2, 3]. principal(S) contains all source subsets containing S; the empty generator is allowed, and no NeBot premise is added. The complete map g:Fin(8)→Fin(8) has after=[7, 6, 5, 4, 3, 2, 1, 0]. Give ((g∘f)(S), g(f(S))) as complete increasing sets.

  • G001 — The complete total map f:Fin(8)→Fin(8) has images=[7, 6, 5, 4, 3, 2, 1, 0] indexed from 0; Fin(8)={0,…,7}. Every table entry must lie in the target type. S=[0, 2, 3]. principal(S) contains all source subsets containing S; the empty generator is allowed, and no NeBot premise is added. The complete map g:Fin(8)→Fin(8) has after=[7, 6, 5, 4, 3, 2, 1, 0]. Give ((g∘f)(S), g(f(S))) as complete increasing sets.

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

source index=0∈Fin(8)

After

image=7∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001

S002 · implies

Before

source index=1∈Fin(8)

After

image=6∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S001

S003 · implies

Before

source index=2∈Fin(8)

After

image=5∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S002

S004 · implies

Before

source index=3∈Fin(8)

After

image=4∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S003

S005 · implies

Before

source index=4∈Fin(8)

After

image=3∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S004

S006 · implies

Before

source index=5∈Fin(8)

After

image=2∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S005

S007 · implies

Before

source index=6∈Fin(8)

After

image=1∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S006

S008 · implies

Before

source index=7∈Fin(8)

After

image=0∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_principal_map_row · Uses: G001, S007

S009 · implies

Before

Fin(8)→Fin(8);S=[0, 2, 3];full map=[7, 6, 5, 4, 3, 2, 1, 0]

After

principal(S)={A:S⊆A};empty generators allowed,no NeBot

Conditions: none

The declared convention allows empty S;its family of supersets then contains the empty set,and no proper-filter or NeBot condition is added.This is a finite principal-generator model,not a general sequence or point limit.

Step identifiers and dependencies

Rule: finite_principal_generator_convention · Uses: G001, S008

S010 · implies

Before

source index=0∈Fin(8)

After

image=7∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S009

S011 · implies

Before

source index=1∈Fin(8)

After

image=6∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S010

S012 · implies

Before

source index=2∈Fin(8)

After

image=5∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S011

S013 · implies

Before

source index=3∈Fin(8)

After

image=4∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S012

S014 · implies

Before

source index=4∈Fin(8)

After

image=3∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S013

S015 · implies

Before

source index=5∈Fin(8)

After

image=2∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S014

S016 · implies

Before

source index=6∈Fin(8)

After

image=1∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S015

S017 · implies

Before

source index=7∈Fin(8)

After

image=0∈Fin(8)

Conditions: none

Every entry of the complete table must be legal;an entry being unused later does not waive total-map typing.

Step identifiers and dependencies

Rule: complete_after_map_row · Uses: G001, S016

S018 · implies

Before

x=0;f(x)=7

After

g(f(x))=0

Conditions: none

The first route composes at each source element,retaining the direction of both maps.

Step identifiers and dependencies

Rule: principal_direct_composition_row · Uses: G001, S017

S019 · implies

Before

x=2;f(x)=5

After

g(f(x))=2

Conditions: none

The first route composes at each source element,retaining the direction of both maps.

Step identifiers and dependencies

Rule: principal_direct_composition_row · Uses: G001, S018

S020 · implies

Before

x=3;f(x)=4

After

g(f(x))=3

Conditions: none

The first route composes at each source element,retaining the direction of both maps.

Step identifiers and dependencies

Rule: principal_direct_composition_row · Uses: G001, S019

S021 · implies

Before

distinct intermediate image=4

After

g(y)=3

Conditions: none

The second route deduplicates f(S) before applying g;a total function assigns the same successor to the same intermediate value,so deduplication loses no final image.

Step identifiers and dependencies

Rule: principal_image_then_map_row · Uses: G001, S020

S022 · implies

Before

distinct intermediate image=5

After

g(y)=2

Conditions: none

The second route deduplicates f(S) before applying g;a total function assigns the same successor to the same intermediate value,so deduplication loses no final image.

Step identifiers and dependencies

Rule: principal_image_then_map_row · Uses: G001, S021

S023 · implies

Before

distinct intermediate image=7

After

g(y)=0

Conditions: none

The second route deduplicates f(S) before applying g;a total function assigns the same successor to the same intermediate value,so deduplication loses no final image.

Step identifiers and dependencies

Rule: principal_image_then_map_row · Uses: G001, S022

S024 · implies

Before

direct composite image=[0, 2, 3];image then map=[0, 2, 3]

After

(g∘f)(S)=g(f(S)) in this complete finite model

Conditions: none

Both routes give the same final image;empty S gives empty images on both routes.No general analytic limit or additional nonemptiness premise is introduced.

Step identifiers and dependencies

Rule: principal_composition_image_identity · Uses: G001, S023

Reverse checks

  • S024 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S023 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S022 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S021 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S020 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S019 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S018 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S017 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S016 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S015 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S014 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S013 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S012 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S011 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S010 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S009 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • 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.

Result

([0, 2, 3], [0, 2, 3])

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: 360133609285242c9f122f4e90eafaef073d950de60b5b60bb67d67384fde382
  • candidate record SHA-256: 60927a4672e159d98dc40eb56671eff6be4941d78ff01cfa666a6fd4721dc063
  • semantic review receipt SHA-256: 71e7db519df31f3a164533e472e293cb64f001b475a8d002b4a5c2740a237b56
  • question-first witness SHA-256: 5a43f4f81b6256281f8d139a4010bbde127be803c528e5878857269c8f854462
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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