Theorem sectpropd 49815

Description: Two structures with the same base, hom-sets and composition operation have the same sections. (Contributed by Zhi Wang, 27-Oct-2025.)

Hypotheses

Ref	Expression
sectpropd.1	⊢ (𝜑 → (Homf ‘𝐶) = (Homf ‘𝐷))
sectpropd.2	⊢ (𝜑 → (compf‘𝐶) = (compf‘𝐷))

Assertion

Ref	Expression
sectpropd	⊢ (𝜑 → (Sect‘𝐶) = (Sect‘𝐷))

Proof of Theorem sectpropd

Dummy variable 𝑓 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		sectpropd.1	. . . 4 ⊢ (𝜑 → (Homf ‘𝐶) = (Homf ‘𝐷))
2		sectpropd.2	. . . 4 ⊢ (𝜑 → (compf‘𝐶) = (compf‘𝐷))
3	1, 2	sectpropdlem 49814	. . 3 ⊢ ((𝜑 ∧ 𝑓 ∈ (Sect‘𝐶)) → 𝑓 ∈ (Sect‘𝐷))
4	1	eqcomd 2769	. . . 4 ⊢ (𝜑 → (Homf ‘𝐷) = (Homf ‘𝐶))
5	2	eqcomd 2769	. . . 4 ⊢ (𝜑 → (compf‘𝐷) = (compf‘𝐶))
6	4, 5	sectpropdlem 49814	. . 3 ⊢ ((𝜑 ∧ 𝑓 ∈ (Sect‘𝐷)) → 𝑓 ∈ (Sect‘𝐶))
7	3, 6	impbida 812	. 2 ⊢ (𝜑 → (𝑓 ∈ (Sect‘𝐶) ↔ 𝑓 ∈ (Sect‘𝐷)))
8	7	eqrdv 2761	1 ⊢ (𝜑 → (Sect‘𝐶) = (Sect‘𝐷))

Syntax hints:   → wi 4   = wceq 1570   ∈ wcel 2143  ‘cfv 6536  Hom_f chomf 17717  comp_fccomf 17718  Sectcsect 17796

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-rep 5238  ax-sep 5257  ax-nul 5269  ax-pow 5336  ax-pr 5404  ax-un 7732

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-reu 3370  df-rab 3417  df-v 3457  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-iun 4958  df-br 5110  df-opab 5174  df-mpt 5193  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-riota 7367  df-ov 7413  df-oprab 7414  df-mpo 7415  df-1st 7982  df-2nd 7983  df-cat 17719  df-cid 17720  df-homf 17721  df-comf 17722  df-sect 17799

This theorem is referenced by:  invpropdlem  49816