Theorem swapf2fval 49510

Description: The morphism part of the swap functor. See also swapf2fvala 49509. (Contributed by Zhi Wang, 7-Oct-2025.)

Hypotheses

Ref	Expression
swapfval.c	⊢ (𝜑 → 𝐶 ∈ 𝑈)
swapfval.d	⊢ (𝜑 → 𝐷 ∈ 𝑉)
swapf2fvala.s	⊢ 𝑆 = (𝐶 ×c 𝐷)
swapf2fvala.b	⊢ 𝐵 = (Base‘𝑆)
swapf2fvala.h	⊢ (𝜑 → 𝐻 = (Hom ‘𝑆))
swapf2fval.o	⊢ (𝜑 → (𝐶 swapF 𝐷) = ⟨𝑂, 𝑃⟩)

Assertion

Ref	Expression
swapf2fval	⊢ (𝜑 → 𝑃 = (𝑢 ∈ 𝐵, 𝑣 ∈ 𝐵 ↦ (𝑓 ∈ (𝑢𝐻𝑣) ↦ ∪ ◡{𝑓})))

Distinct variable groups:   𝑢,𝐵,𝑣   𝑢,𝐶,𝑣   𝑢,𝐷,𝑣   𝑓,𝐻,𝑢,𝑣   𝑢,𝑆,𝑣   𝜑,𝑢,𝑣

Allowed substitution hints:   𝜑(𝑓)   𝐵(𝑓)   𝐶(𝑓)   𝐷(𝑓)   𝑃(𝑣,𝑢,𝑓)   𝑆(𝑓)   𝑈(𝑣,𝑢,𝑓)   𝑂(𝑣,𝑢,𝑓)   𝑉(𝑣,𝑢,𝑓)

Proof of Theorem swapf2fval

Step	Hyp	Ref	Expression
1		swapf2fval.o	. . 3 ⊢ (𝜑 → (𝐶 swapF 𝐷) = ⟨𝑂, 𝑃⟩)
2	1	fveq2d 6838	. 2 ⊢ (𝜑 → (2nd ‘(𝐶 swapF 𝐷)) = (2nd ‘⟨𝑂, 𝑃⟩))
3		swapfval.c	. . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑈)
4		swapfval.d	. . 3 ⊢ (𝜑 → 𝐷 ∈ 𝑉)
5		swapf2fvala.s	. . 3 ⊢ 𝑆 = (𝐶 ×c 𝐷)
6		swapf2fvala.b	. . 3 ⊢ 𝐵 = (Base‘𝑆)
7		swapf2fvala.h	. . 3 ⊢ (𝜑 → 𝐻 = (Hom ‘𝑆))
8	3, 4, 5, 6, 7	swapf2fvala 49509	. 2 ⊢ (𝜑 → (2nd ‘(𝐶 swapF 𝐷)) = (𝑢 ∈ 𝐵, 𝑣 ∈ 𝐵 ↦ (𝑓 ∈ (𝑢𝐻𝑣) ↦ ∪ ◡{𝑓})))
9	3, 4	swapfelvv 49508	. . . 4 ⊢ (𝜑 → (𝐶 swapF 𝐷) ∈ (V × V))
10	1, 9	eqeltrrd 2837	. . 3 ⊢ (𝜑 → ⟨𝑂, 𝑃⟩ ∈ (V × V))
11		opelxp 5660	. . . 4 ⊢ (⟨𝑂, 𝑃⟩ ∈ (V × V) ↔ (𝑂 ∈ V ∧ 𝑃 ∈ V))
12	11	biimpi 216	. . 3 ⊢ (⟨𝑂, 𝑃⟩ ∈ (V × V) → (𝑂 ∈ V ∧ 𝑃 ∈ V))
13		op2ndg 7946	. . 3 ⊢ ((𝑂 ∈ V ∧ 𝑃 ∈ V) → (2nd ‘⟨𝑂, 𝑃⟩) = 𝑃)
14	10, 12, 13	3syl 18	. 2 ⊢ (𝜑 → (2nd ‘⟨𝑂, 𝑃⟩) = 𝑃)
15	2, 8, 14	3eqtr3rd 2780	1 ⊢ (𝜑 → 𝑃 = (𝑢 ∈ 𝐵, 𝑣 ∈ 𝐵 ↦ (𝑓 ∈ (𝑢𝐻𝑣) ↦ ∪ ◡{𝑓})))

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1541   ∈ wcel 2113  Vcvv 3440  {csn 4580  ⟨cop 4586  ∪ cuni 4863   ↦ cmpt 5179   × cxp 5622  ^◡ccnv 5623  ‘cfv 6492  (class class class)co 7358   ∈ cmpo 7360  2^nd c2nd 7932  Basecbs 17136  Hom chom 17188   ×_c cxpc 18091   swap_F cswapf 49504

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2184  ax-ext 2708  ax-rep 5224  ax-sep 5241  ax-nul 5251  ax-pow 5310  ax-pr 5377  ax-un 7680

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3351  df-rab 3400  df-v 3442  df-sbc 3741  df-csb 3850  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-iun 4948  df-br 5099  df-opab 5161  df-mpt 5180  df-id 5519  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-ov 7361  df-oprab 7362  df-mpo 7363  df-1st 7933  df-2nd 7934  df-swapf 49505

This theorem is referenced by:  swapf2fn  49513  swapf2vala  49515