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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 49770. (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 2737 | . . 3 ⊢ (Base‘𝐷) = (Base‘𝐷) | |
| 5 | eqid 2737 | . . 3 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 6 | eqid 2737 | . . 3 ⊢ (Id‘𝐷) = (Id‘𝐷) | |
| 7 | eqid 2737 | . . 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 18149 | . 2 ⊢ (𝜑 → (𝐼‘〈𝑌, 𝑋〉) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 12 | df-ov 7364 | . . . 4 ⊢ (𝑋𝑂𝑌) = (𝑂‘〈𝑋, 𝑌〉) | |
| 13 | swapfid.o | . . . . 5 ⊢ (𝜑 → (𝐶 swapF 𝐷) = 〈𝑂, 𝑃〉) | |
| 14 | 13, 10, 9 | swapf1 49762 | . . . 4 ⊢ (𝜑 → (𝑋𝑂𝑌) = 〈𝑌, 𝑋〉) |
| 15 | 12, 14 | eqtr3id 2786 | . . 3 ⊢ (𝜑 → (𝑂‘〈𝑋, 𝑌〉) = 〈𝑌, 𝑋〉) |
| 16 | 15 | fveq2d 6839 | . 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 18149 | . . . 4 ⊢ (𝜑 → ( 1 ‘〈𝑋, 𝑌〉) = 〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉) |
| 20 | 19 | fveq2d 6839 | . . 3 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘〈((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑌)〉)) |
| 21 | df-ov 7364 | . . . 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 2737 | . . . . 5 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 24 | 5, 23, 7, 3, 10 | catidcl 17642 | . . . 4 ⊢ (𝜑 → ((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋)) |
| 25 | eqid 2737 | . . . . 5 ⊢ (Hom ‘𝐷) = (Hom ‘𝐷) | |
| 26 | 4, 25, 6, 2, 9 | catidcl 17642 | . . . 4 ⊢ (𝜑 → ((Id‘𝐷)‘𝑌) ∈ (𝑌(Hom ‘𝐷)𝑌)) |
| 27 | 13, 10, 9, 10, 9, 24, 26 | swapf2 49764 | . . 3 ⊢ (𝜑 → (((Id‘𝐶)‘𝑋)(〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)((Id‘𝐷)‘𝑌)) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 28 | 20, 22, 27 | 3eqtr2d 2778 | . 2 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = 〈((Id‘𝐷)‘𝑌), ((Id‘𝐶)‘𝑋)〉) |
| 29 | 11, 16, 28 | 3eqtr4rd 2783 | 1 ⊢ (𝜑 → ((〈𝑋, 𝑌〉𝑃〈𝑋, 𝑌〉)‘( 1 ‘〈𝑋, 𝑌〉)) = (𝐼‘(𝑂‘〈𝑋, 𝑌〉))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 〈cop 4574 ‘cfv 6493 (class class class)co 7361 Basecbs 17173 Hom chom 17225 Catccat 17624 Idccid 17625 ×c cxpc 18128 swapF cswapf 49749 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 ax-pre-mulgt0 11109 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-sub 11373 df-neg 11374 df-nn 12169 df-2 12238 df-3 12239 df-4 12240 df-5 12241 df-6 12242 df-7 12243 df-8 12244 df-9 12245 df-n0 12432 df-z 12519 df-dec 12639 df-uz 12783 df-fz 13456 df-struct 17111 df-slot 17146 df-ndx 17158 df-base 17174 df-hom 17238 df-cco 17239 df-cat 17628 df-cid 17629 df-xpc 18132 df-swapf 49750 |
| This theorem is referenced by: swapfida 49770 |
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