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| Mirrors > Home > MPE Home > Th. List > oppccat | Structured version Visualization version GIF version | ||
| Description: An opposite category is a category. (Contributed by Mario Carneiro, 2-Jan-2017.) |
| Ref | Expression |
|---|---|
| oppcbas.1 | ⊢ 𝑂 = (oppCat‘𝐶) |
| Ref | Expression |
|---|---|
| oppccat | ⊢ (𝐶 ∈ Cat → 𝑂 ∈ Cat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oppcbas.1 | . . 3 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 2 | 1 | oppccatid 17797 | . 2 ⊢ (𝐶 ∈ Cat → (𝑂 ∈ Cat ∧ (Id‘𝑂) = (Id‘𝐶))) |
| 3 | 2 | simpld 500 | 1 ⊢ (𝐶 ∈ Cat → 𝑂 ∈ Cat) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 ‘cfv 6540 Catccat 17742 Idccid 17743 oppCatcoppc 17789 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11171 ax-resscn 11172 ax-1cn 11173 ax-icn 11174 ax-addcl 11175 ax-addrcl 11176 ax-mulcl 11177 ax-mulrcl 11178 ax-mulcom 11179 ax-addass 11180 ax-mulass 11181 ax-distr 11182 ax-i2m1 11183 ax-1ne0 11184 ax-1rid 11185 ax-rnegex 11186 ax-rrecex 11187 ax-cnre 11188 ax-pre-lttri 11189 ax-pre-lttrn 11190 ax-pre-ltadd 11191 ax-pre-mulgt0 11192 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-tpos 8228 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11260 df-mnf 11261 df-xr 11262 df-ltxr 11263 df-le 11264 df-sub 11458 df-neg 11459 df-nn 12249 df-2 12318 df-3 12319 df-4 12320 df-5 12321 df-6 12322 df-7 12323 df-8 12324 df-9 12325 df-n0 12520 df-z 12607 df-dec 12728 df-sets 17246 df-slot 17264 df-ndx 17276 df-base 17292 df-hom 17356 df-cco 17357 df-cat 17746 df-cid 17747 df-oppc 17790 |
| This theorem is used by: oppccatf 17806 oppcepi 17818 isepi 17819 epii 17822 oppcsect 17857 oppcsect2 17858 oppcinv 17859 oppciso 17860 sectepi 17863 episect 17864 funcoppc 17954 dfinito2 18082 dftermo2 18083 catcoppccl 18196 hofcl 18337 oppchofcl 18338 yoncl 18340 yon11 18342 yon12 18343 yon2 18344 yonpropd 18346 oppcyon 18347 oyoncl 18348 yonedalem1 18350 yonedalem21 18351 yonedalem3a 18352 yonedalem22 18356 yonedalem3b 18357 yonedainv 18359 yonffthlem 18360 yoniso 18363 oppccatb 49851 oppccic 49879 natoppfb 50066 oppczeroo 50072 termoeu2 50073 oppc1stf 50123 oppc2ndf 50124 fucoppcffth 50246 oppfdiag1 50249 oppfdiag 50251 oppcthin 50273 dftermo4 50337 lmddu 50502 cmddu 50503 |
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