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| Mirrors > Home > MPE Home > Th. List > Mathboxes > oppccic | Structured version Visualization version GIF version | ||
| Description: Isomorphic objects are isomorphic in the opposite category. (Contributed by Zhi Wang, 26-Oct-2025.) |
| Ref | Expression |
|---|---|
| oppccic.o | ⊢ 𝑂 = (oppCat‘𝐶) |
| oppccic.i | ⊢ (𝜑 → 𝑅( ≃𝑐 ‘𝐶)𝑆) |
| Ref | Expression |
|---|---|
| oppccic | ⊢ (𝜑 → 𝑅( ≃𝑐 ‘𝑂)𝑆) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oppccic.i | . . . 4 ⊢ (𝜑 → 𝑅( ≃𝑐 ‘𝐶)𝑆) | |
| 2 | cicrcl2 49005 | . . . 4 ⊢ (𝑅( ≃𝑐 ‘𝐶)𝑆 → 𝐶 ∈ Cat) | |
| 3 | 1, 2 | syl 17 | . . 3 ⊢ (𝜑 → 𝐶 ∈ Cat) |
| 4 | oppccic.o | . . . 4 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 5 | 4 | oppccat 17659 | . . 3 ⊢ (𝐶 ∈ Cat → 𝑂 ∈ Cat) |
| 6 | 3, 5 | syl 17 | . 2 ⊢ (𝜑 → 𝑂 ∈ Cat) |
| 7 | eqid 2729 | . . . . . 6 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 8 | cicrcl 17741 | . . . . . . 7 ⊢ ((𝐶 ∈ Cat ∧ 𝑅( ≃𝑐 ‘𝐶)𝑆) → 𝑆 ∈ (Base‘𝐶)) | |
| 9 | 3, 1, 8 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → 𝑆 ∈ (Base‘𝐶)) |
| 10 | ciclcl 17740 | . . . . . . 7 ⊢ ((𝐶 ∈ Cat ∧ 𝑅( ≃𝑐 ‘𝐶)𝑆) → 𝑅 ∈ (Base‘𝐶)) | |
| 11 | 3, 1, 10 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → 𝑅 ∈ (Base‘𝐶)) |
| 12 | eqid 2729 | . . . . . 6 ⊢ (Iso‘𝐶) = (Iso‘𝐶) | |
| 13 | eqid 2729 | . . . . . 6 ⊢ (Iso‘𝑂) = (Iso‘𝑂) | |
| 14 | 7, 4, 3, 9, 11, 12, 13 | oppciso 17719 | . . . . 5 ⊢ (𝜑 → (𝑆(Iso‘𝑂)𝑅) = (𝑅(Iso‘𝐶)𝑆)) |
| 15 | 14 | neeq1d 2984 | . . . 4 ⊢ (𝜑 → ((𝑆(Iso‘𝑂)𝑅) ≠ ∅ ↔ (𝑅(Iso‘𝐶)𝑆) ≠ ∅)) |
| 16 | 4, 7 | oppcbas 17655 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝑂) |
| 17 | 13, 16, 6, 9, 11 | brcic 17736 | . . . 4 ⊢ (𝜑 → (𝑆( ≃𝑐 ‘𝑂)𝑅 ↔ (𝑆(Iso‘𝑂)𝑅) ≠ ∅)) |
| 18 | 12, 7, 3, 11, 9 | brcic 17736 | . . . 4 ⊢ (𝜑 → (𝑅( ≃𝑐 ‘𝐶)𝑆 ↔ (𝑅(Iso‘𝐶)𝑆) ≠ ∅)) |
| 19 | 15, 17, 18 | 3bitr4rd 312 | . . 3 ⊢ (𝜑 → (𝑅( ≃𝑐 ‘𝐶)𝑆 ↔ 𝑆( ≃𝑐 ‘𝑂)𝑅)) |
| 20 | 1, 19 | mpbid 232 | . 2 ⊢ (𝜑 → 𝑆( ≃𝑐 ‘𝑂)𝑅) |
| 21 | cicsym 17742 | . 2 ⊢ ((𝑂 ∈ Cat ∧ 𝑆( ≃𝑐 ‘𝑂)𝑅) → 𝑅( ≃𝑐 ‘𝑂)𝑆) | |
| 22 | 6, 20, 21 | syl2anc 584 | 1 ⊢ (𝜑 → 𝑅( ≃𝑐 ‘𝑂)𝑆) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 ≠ wne 2925 ∅c0 4292 class class class wbr 5102 ‘cfv 6499 (class class class)co 7369 Basecbs 17155 Catccat 17601 oppCatcoppc 17648 Isociso 17684 ≃𝑐 ccic 17733 |
| 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 2701 ax-rep 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 |
| 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 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3351 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-om 7823 df-1st 7947 df-2nd 7948 df-supp 8117 df-tpos 8182 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-er 8648 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-nn 12163 df-2 12225 df-3 12226 df-4 12227 df-5 12228 df-6 12229 df-7 12230 df-8 12231 df-9 12232 df-n0 12419 df-z 12506 df-dec 12626 df-sets 17110 df-slot 17128 df-ndx 17140 df-base 17156 df-hom 17220 df-cco 17221 df-cat 17605 df-cid 17606 df-oppc 17649 df-sect 17685 df-inv 17686 df-iso 17687 df-cic 17734 |
| This theorem is referenced by: oppccicb 49013 oppcciceq 49014 termoeu2 49200 |
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