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| Mirrors > Home > MPE Home > Th. List > Mathboxes > swapciso | Structured version Visualization version GIF version | ||
| Description: The product category is categorically isomorphic to the swapped product category. (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) |
| swapfiso.e | ⊢ 𝐸 = (CatCat‘𝑈) |
| swapfiso.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| swapfiso.s | ⊢ (𝜑 → 𝑆 ∈ 𝑈) |
| swapfiso.t | ⊢ (𝜑 → 𝑇 ∈ 𝑈) |
| Ref | Expression |
|---|---|
| swapciso | ⊢ (𝜑 → 𝑆( ≃𝑐 ‘𝐸)𝑇) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2731 | . 2 ⊢ (Iso‘𝐸) = (Iso‘𝐸) | |
| 2 | eqid 2731 | . 2 ⊢ (Base‘𝐸) = (Base‘𝐸) | |
| 3 | swapfiso.u | . . 3 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 4 | swapfiso.e | . . . 4 ⊢ 𝐸 = (CatCat‘𝑈) | |
| 5 | 4 | catccat 18010 | . . 3 ⊢ (𝑈 ∈ 𝑉 → 𝐸 ∈ Cat) |
| 6 | 3, 5 | syl 17 | . 2 ⊢ (𝜑 → 𝐸 ∈ Cat) |
| 7 | swapfiso.s | . . . 4 ⊢ (𝜑 → 𝑆 ∈ 𝑈) | |
| 8 | swapfid.s | . . . . 5 ⊢ 𝑆 = (𝐶 ×c 𝐷) | |
| 9 | swapfid.c | . . . . 5 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
| 10 | swapfid.d | . . . . 5 ⊢ (𝜑 → 𝐷 ∈ Cat) | |
| 11 | 8, 9, 10 | xpccat 18091 | . . . 4 ⊢ (𝜑 → 𝑆 ∈ Cat) |
| 12 | 7, 11 | elind 4145 | . . 3 ⊢ (𝜑 → 𝑆 ∈ (𝑈 ∩ Cat)) |
| 13 | 4, 2, 3 | catcbas 18003 | . . 3 ⊢ (𝜑 → (Base‘𝐸) = (𝑈 ∩ Cat)) |
| 14 | 12, 13 | eleqtrrd 2834 | . 2 ⊢ (𝜑 → 𝑆 ∈ (Base‘𝐸)) |
| 15 | swapfiso.t | . . . 4 ⊢ (𝜑 → 𝑇 ∈ 𝑈) | |
| 16 | swapfid.t | . . . . 5 ⊢ 𝑇 = (𝐷 ×c 𝐶) | |
| 17 | 16, 10, 9 | xpccat 18091 | . . . 4 ⊢ (𝜑 → 𝑇 ∈ Cat) |
| 18 | 15, 17 | elind 4145 | . . 3 ⊢ (𝜑 → 𝑇 ∈ (𝑈 ∩ Cat)) |
| 19 | 18, 13 | eleqtrrd 2834 | . 2 ⊢ (𝜑 → 𝑇 ∈ (Base‘𝐸)) |
| 20 | 9, 10, 8, 16, 4, 3, 7, 15, 1 | swapfiso 49317 | . 2 ⊢ (𝜑 → (𝐶 swapF 𝐷) ∈ (𝑆(Iso‘𝐸)𝑇)) |
| 21 | 1, 2, 6, 14, 19, 20 | brcici 17702 | 1 ⊢ (𝜑 → 𝑆( ≃𝑐 ‘𝐸)𝑇) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2111 ∩ cin 3896 class class class wbr 5086 ‘cfv 6476 (class class class)co 7341 Basecbs 17115 Catccat 17565 Isociso 17648 ≃𝑐 ccic 17697 CatCatccatc 18000 ×c cxpc 18069 swapF cswapf 49291 |
| 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 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-rep 5212 ax-sep 5229 ax-nul 5239 ax-pow 5298 ax-pr 5365 ax-un 7663 ax-cnex 11057 ax-resscn 11058 ax-1cn 11059 ax-icn 11060 ax-addcl 11061 ax-addrcl 11062 ax-mulcl 11063 ax-mulrcl 11064 ax-mulcom 11065 ax-addass 11066 ax-mulass 11067 ax-distr 11068 ax-i2m1 11069 ax-1ne0 11070 ax-1rid 11071 ax-rnegex 11072 ax-rrecex 11073 ax-cnre 11074 ax-pre-lttri 11075 ax-pre-lttrn 11076 ax-pre-ltadd 11077 ax-pre-mulgt0 11078 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4279 df-if 4471 df-pw 4547 df-sn 4572 df-pr 4574 df-tp 4576 df-op 4578 df-uni 4855 df-iun 4938 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5506 df-eprel 5511 df-po 5519 df-so 5520 df-fr 5564 df-we 5566 df-xp 5617 df-rel 5618 df-cnv 5619 df-co 5620 df-dm 5621 df-rn 5622 df-res 5623 df-ima 5624 df-pred 6243 df-ord 6304 df-on 6305 df-lim 6306 df-suc 6307 df-iota 6432 df-fun 6478 df-fn 6479 df-f 6480 df-f1 6481 df-fo 6482 df-f1o 6483 df-fv 6484 df-riota 7298 df-ov 7344 df-oprab 7345 df-mpo 7346 df-om 7792 df-1st 7916 df-2nd 7917 df-supp 8086 df-frecs 8206 df-wrecs 8237 df-recs 8286 df-rdg 8324 df-1o 8380 df-er 8617 df-map 8747 df-ixp 8817 df-en 8865 df-dom 8866 df-sdom 8867 df-fin 8868 df-pnf 11143 df-mnf 11144 df-xr 11145 df-ltxr 11146 df-le 11147 df-sub 11341 df-neg 11342 df-nn 12121 df-2 12183 df-3 12184 df-4 12185 df-5 12186 df-6 12187 df-7 12188 df-8 12189 df-9 12190 df-n0 12377 df-z 12464 df-dec 12584 df-uz 12728 df-fz 13403 df-struct 17053 df-slot 17088 df-ndx 17100 df-base 17116 df-hom 17180 df-cco 17181 df-cat 17569 df-cid 17570 df-sect 17649 df-inv 17650 df-iso 17651 df-cic 17698 df-func 17760 df-idfu 17761 df-cofu 17762 df-full 17808 df-fth 17809 df-catc 18001 df-xpc 18073 df-swapf 49292 |
| This theorem is referenced by: (None) |
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