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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 2730 | . 2 ⊢ (Iso‘𝐸) = (Iso‘𝐸) | |
| 2 | eqid 2730 | . 2 ⊢ (Base‘𝐸) = (Base‘𝐸) | |
| 3 | swapfiso.u | . . 3 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 4 | swapfiso.e | . . . 4 ⊢ 𝐸 = (CatCat‘𝑈) | |
| 5 | 4 | catccat 18076 | . . 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 18157 | . . . 4 ⊢ (𝜑 → 𝑆 ∈ Cat) |
| 12 | 7, 11 | elind 4165 | . . 3 ⊢ (𝜑 → 𝑆 ∈ (𝑈 ∩ Cat)) |
| 13 | 4, 2, 3 | catcbas 18069 | . . 3 ⊢ (𝜑 → (Base‘𝐸) = (𝑈 ∩ Cat)) |
| 14 | 12, 13 | eleqtrrd 2832 | . 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 18157 | . . . 4 ⊢ (𝜑 → 𝑇 ∈ Cat) |
| 18 | 15, 17 | elind 4165 | . . 3 ⊢ (𝜑 → 𝑇 ∈ (𝑈 ∩ Cat)) |
| 19 | 18, 13 | eleqtrrd 2832 | . 2 ⊢ (𝜑 → 𝑇 ∈ (Base‘𝐸)) |
| 20 | 9, 10, 8, 16, 4, 3, 7, 15, 1 | swapfiso 49256 | . 2 ⊢ (𝜑 → (𝐶 swapF 𝐷) ∈ (𝑆(Iso‘𝐸)𝑇)) |
| 21 | 1, 2, 6, 14, 19, 20 | brcici 17768 | 1 ⊢ (𝜑 → 𝑆( ≃𝑐 ‘𝐸)𝑇) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 ∩ cin 3915 class class class wbr 5109 ‘cfv 6513 (class class class)co 7389 Basecbs 17185 Catccat 17631 Isociso 17714 ≃𝑐 ccic 17763 CatCatccatc 18066 ×c cxpc 18135 swapF cswapf 49230 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-rep 5236 ax-sep 5253 ax-nul 5263 ax-pow 5322 ax-pr 5389 ax-un 7713 ax-cnex 11130 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 ax-pre-mulgt0 11151 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3756 df-csb 3865 df-dif 3919 df-un 3921 df-in 3923 df-ss 3933 df-pss 3936 df-nul 4299 df-if 4491 df-pw 4567 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4874 df-iun 4959 df-br 5110 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-pred 6276 df-ord 6337 df-on 6338 df-lim 6339 df-suc 6340 df-iota 6466 df-fun 6515 df-fn 6516 df-f 6517 df-f1 6518 df-fo 6519 df-f1o 6520 df-fv 6521 df-riota 7346 df-ov 7392 df-oprab 7393 df-mpo 7394 df-om 7845 df-1st 7970 df-2nd 7971 df-supp 8142 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8380 df-1o 8436 df-er 8673 df-map 8803 df-ixp 8873 df-en 8921 df-dom 8922 df-sdom 8923 df-fin 8924 df-pnf 11216 df-mnf 11217 df-xr 11218 df-ltxr 11219 df-le 11220 df-sub 11413 df-neg 11414 df-nn 12188 df-2 12250 df-3 12251 df-4 12252 df-5 12253 df-6 12254 df-7 12255 df-8 12256 df-9 12257 df-n0 12449 df-z 12536 df-dec 12656 df-uz 12800 df-fz 13475 df-struct 17123 df-slot 17158 df-ndx 17170 df-base 17186 df-hom 17250 df-cco 17251 df-cat 17635 df-cid 17636 df-sect 17715 df-inv 17716 df-iso 17717 df-cic 17764 df-func 17826 df-idfu 17827 df-cofu 17828 df-full 17874 df-fth 17875 df-catc 18067 df-xpc 18139 df-swapf 49231 |
| This theorem is referenced by: (None) |
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