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Mirrors > Home > MPE Home > Th. List > oppciso | Structured version Visualization version GIF version |
Description: An isomorphism in the opposite category. See also remark 3.9 in [Adamek] p. 28. (Contributed by Mario Carneiro, 3-Jan-2017.) |
Ref | Expression |
---|---|
oppcsect.b | ⊢ 𝐵 = (Base‘𝐶) |
oppcsect.o | ⊢ 𝑂 = (oppCat‘𝐶) |
oppcsect.c | ⊢ (𝜑 → 𝐶 ∈ Cat) |
oppcsect.x | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
oppcsect.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
oppciso.s | ⊢ 𝐼 = (Iso‘𝐶) |
oppciso.t | ⊢ 𝐽 = (Iso‘𝑂) |
Ref | Expression |
---|---|
oppciso | ⊢ (𝜑 → (𝑋𝐽𝑌) = (𝑌𝐼𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oppcsect.b | . . . 4 ⊢ 𝐵 = (Base‘𝐶) | |
2 | oppcsect.o | . . . 4 ⊢ 𝑂 = (oppCat‘𝐶) | |
3 | oppcsect.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ Cat) | |
4 | oppcsect.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝐵) | |
5 | oppcsect.y | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
6 | eqid 2823 | . . . 4 ⊢ (Inv‘𝐶) = (Inv‘𝐶) | |
7 | eqid 2823 | . . . 4 ⊢ (Inv‘𝑂) = (Inv‘𝑂) | |
8 | 1, 2, 3, 4, 5, 6, 7 | oppcinv 17052 | . . 3 ⊢ (𝜑 → (𝑋(Inv‘𝑂)𝑌) = (𝑌(Inv‘𝐶)𝑋)) |
9 | 8 | dmeqd 5776 | . 2 ⊢ (𝜑 → dom (𝑋(Inv‘𝑂)𝑌) = dom (𝑌(Inv‘𝐶)𝑋)) |
10 | 2, 1 | oppcbas 16990 | . . 3 ⊢ 𝐵 = (Base‘𝑂) |
11 | 2 | oppccat 16994 | . . . 4 ⊢ (𝐶 ∈ Cat → 𝑂 ∈ Cat) |
12 | 3, 11 | syl 17 | . . 3 ⊢ (𝜑 → 𝑂 ∈ Cat) |
13 | oppciso.t | . . 3 ⊢ 𝐽 = (Iso‘𝑂) | |
14 | 10, 7, 12, 4, 5, 13 | isoval 17037 | . 2 ⊢ (𝜑 → (𝑋𝐽𝑌) = dom (𝑋(Inv‘𝑂)𝑌)) |
15 | oppciso.s | . . 3 ⊢ 𝐼 = (Iso‘𝐶) | |
16 | 1, 6, 3, 5, 4, 15 | isoval 17037 | . 2 ⊢ (𝜑 → (𝑌𝐼𝑋) = dom (𝑌(Inv‘𝐶)𝑋)) |
17 | 9, 14, 16 | 3eqtr4d 2868 | 1 ⊢ (𝜑 → (𝑋𝐽𝑌) = (𝑌𝐼𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2114 dom cdm 5557 ‘cfv 6357 (class class class)co 7158 Basecbs 16485 Catccat 16937 oppCatcoppc 16983 Invcinv 17017 Isociso 17018 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-rep 5192 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rmo 3148 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-1st 7691 df-2nd 7692 df-tpos 7894 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-nn 11641 df-2 11703 df-3 11704 df-4 11705 df-5 11706 df-6 11707 df-7 11708 df-8 11709 df-9 11710 df-n0 11901 df-z 11985 df-dec 12102 df-ndx 16488 df-slot 16489 df-base 16491 df-sets 16492 df-hom 16591 df-cco 16592 df-cat 16941 df-cid 16942 df-oppc 16984 df-sect 17019 df-inv 17020 df-iso 17021 |
This theorem is referenced by: (None) |
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