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| Mirrors > Home > MPE Home > Th. List > Mathboxes > swapfid | Structured version Visualization version GIF version | ||
| Description: Each identity morphism in the source category is mapped to the corresponding identity morphism in the target category. See also swapfida 50541. (Contributed by Zhi Wang, 8-Oct-2025.) |
| Ref | Expression |
|---|---|
| swapfid.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
| swapfid.d | ⊢ (𝜑 → 𝐷 ∈ Cat) |
| swapfid.s | ⊢ 𝑆 = (𝐶 ×c 𝐷) |
| swapfid.t | ⊢ 𝑇 = (𝐷 ×c 𝐶) |
| swapfid.o | ⊢ (𝜑 → (𝐶 swapF 𝐷) = 〈𝑂, 𝑃〉) |
| swapfid.x | ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) |
| swapfid.y | ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐷)) |
| swapfid.1 | ⊢ 1 = (Id‘𝑆) |
| swapfid.i | ⊢ 𝐼 = (Id‘𝑇) |
| Ref | Expression |
|---|---|
| swapfid | ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = (𝐼‘(𝑂‘〈𝑋, 𝑌〉))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | swapfid.t | . . 3 ⊢ 𝑇 = (𝐷 ×c 𝐶) | |
| 2 | swapfid.d | . . 3 ⊢ (𝜑 → 𝐷 ∈ Cat) | |
| 3 | swapfid.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 4 | eqid 2763 | . . 3 ⊢ (Base‘𝐷) = (Base‘𝐷) | |
| 5 | eqid 2763 | . . 3 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 6 | eqid 2763 | . . 3 ⊢ (Id‘𝐷) = (Id‘𝐷) | |
| 7 | eqid 2763 | . . 3 ⊢ (Id‘𝐶) = (Id‘𝐶) | |
| 8 | swapfid.i | . . 3 ⊢ 𝐼 = (Id‘𝑇) | |
| 9 | swapfid.y | . . 3 ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐷)) | |
| 10 | swapfid.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ (Base‘𝐶)) | |
| 11 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | xpcid 18375 | . 2 ⊢ (𝜑 → (𝐼‘〈𝑌, 𝑋〉) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 12 | df-ov 7430 | . . . 4 ⊢ (𝑋𝑂𝑌) = (𝑂‘〈𝑋, 𝑌〉) | |
| 13 | swapfid.o | . . . . 5 ⊢ (𝜑 → (𝐶 swapF 𝐷) = 〈𝑂, 𝑃〉) | |
| 14 | 13, 10, 9 | swapf1 50533 | . . . 4 ⊢ (𝜑 → (𝑋𝑂𝑌) = 〈𝑌, 𝑋〉) |
| 15 | 12, 14 | eqtr3id 2812 | . . 3 ⊢ (𝜑 → (𝑂‘〈𝑋, 𝑌〉) = 〈𝑌, 𝑋〉) |
| 16 | 15 | fveq2d 6897 | . 2 ⊢ (𝜑 → (𝐼‘(𝑂‘〈𝑋, 𝑌〉)) = (𝐼‘〈𝑌, 𝑋〉)) |
| 17 | swapfid.s | . . . . 5 ⊢ 𝑆 = (𝐶 ×c 𝐷) | |
| 18 | swapfid.1 | . . . . 5 ⊢ 1 = (Id‘𝑆) | |
| 19 | 17, 3, 2, 5, 4, 7, 6, 18, 10, 9 | xpcid 18375 | . . . 4 ⊢ (𝜑 → ( 1 ‘〈𝑋, 𝑌〉) = 〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉) |
| 20 | 19 | fveq2d 6897 | . . 3 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉)) |
| 21 | df-ov 7430 | . . . 4 ⊢ (((Id‘𝐶)‘𝑋)(〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)((Id‘𝐷)‘𝑌)) = ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉) | |
| 22 | 21 | a1i 11 | . . 3 ⊢ (𝜑 → (((Id‘𝐶)‘𝑋)(〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)((Id‘𝐷)‘𝑌)) = ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉)) |
| 23 | eqid 2763 | . . . . 5 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 24 | 5, 23, 7, 3, 10 | catidcl 17868 | . . . 4 ⊢ (𝜑 → ((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋)) |
| 25 | eqid 2763 | . . . . 5 ⊢ (Hom ‘𝐷) = (Hom ‘𝐷) | |
| 26 | 4, 25, 6, 2, 9 | catidcl 17868 | . . . 4 ⊢ (𝜑 → ((Id‘𝐷)‘𝑌) ∈ (𝑌(Hom ‘𝐷)𝑌)) |
| 27 | 13, 10, 9, 10, 9, 24, 26 | swapf2 50535 | . . 3 ⊢ (𝜑 → (((Id‘𝐶)‘𝑋)(〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)((Id‘𝐷)‘𝑌)) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 28 | 20, 22, 27 | 3eqtr2d 2804 | . 2 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 29 | 11, 16, 28 | 3eqtr4rd 2809 | 1 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = (𝐼‘(𝑂‘〈𝑋, 𝑌〉))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2146 〈cop 4837 ‘cfv 6546 (class class class)co 7427 Basecbs 17399 Hom chom 17451 Catccat 17850 Idccid 17851 ×c cxpc 18354 swapF cswapf 50520 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-rep 5234 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-cnex 11266 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-mulcom 11274 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 ax-pre-mulgt0 11287 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-pss 4016 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-tp 4592 df-op 4838 df-uni 4870 df-iun 4955 df-br 5106 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5549 df-eprel 5554 df-po 5562 df-so 5563 df-fr 5607 df-we 5609 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6310 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-om 7885 df-1st 8008 df-2nd 8009 df-frecs 8310 df-wrecs 8341 df-recs 8390 df-rdg 8429 df-1o 8487 df-er 8728 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 df-pnf 11355 df-mnf 11356 df-xr 11357 df-ltxr 11358 df-le 11359 df-sub 11553 df-neg 11554 df-nn 12346 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 df-8 12421 df-9 12422 df-n0 12617 df-z 12704 df-dec 12825 df-uz 12976 df-fz 13650 df-struct 17337 df-slot 17372 df-ndx 17384 df-base 17400 df-hom 17464 df-cco 17465 df-cat 17854 df-cid 17855 df-xpc 18358 df-swapf 50521 |
| This theorem is used by: swapfida 50541 |
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