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| Mirrors > Home > MPE Home > Th. List > 2oppchomf | Structured version Visualization version GIF version | ||
| Description: The double opposite category has the same morphisms as the original category. Intended for use with property lemmas such as monpropd 17695. (Contributed by Mario Carneiro, 3-Jan-2017.) |
| Ref | Expression |
|---|---|
| oppcbas.1 | ⊢ 𝑂 = (oppCat‘𝐶) |
| Ref | Expression |
|---|---|
| 2oppchomf | ⊢ (Homf ‘𝐶) = (Homf ‘(oppCat‘𝑂)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2737 | . . . . 5 ⊢ (Homf ‘𝐶) = (Homf ‘𝐶) | |
| 2 | eqid 2737 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 3 | 1, 2 | homffn 17650 | . . . 4 ⊢ (Homf ‘𝐶) Fn ((Base‘𝐶) × (Base‘𝐶)) |
| 4 | fnrel 6594 | . . . 4 ⊢ ((Homf ‘𝐶) Fn ((Base‘𝐶) × (Base‘𝐶)) → Rel (Homf ‘𝐶)) | |
| 5 | 3, 4 | ax-mp 5 | . . 3 ⊢ Rel (Homf ‘𝐶) |
| 6 | relxp 5642 | . . . 4 ⊢ Rel ((Base‘𝐶) × (Base‘𝐶)) | |
| 7 | 3 | fndmi 6596 | . . . . 5 ⊢ dom (Homf ‘𝐶) = ((Base‘𝐶) × (Base‘𝐶)) |
| 8 | 7 | releqi 5727 | . . . 4 ⊢ (Rel dom (Homf ‘𝐶) ↔ Rel ((Base‘𝐶) × (Base‘𝐶))) |
| 9 | 6, 8 | mpbir 231 | . . 3 ⊢ Rel dom (Homf ‘𝐶) |
| 10 | tpostpos2 8190 | . . 3 ⊢ ((Rel (Homf ‘𝐶) ∧ Rel dom (Homf ‘𝐶)) → tpos tpos (Homf ‘𝐶) = (Homf ‘𝐶)) | |
| 11 | 5, 9, 10 | mp2an 693 | . 2 ⊢ tpos tpos (Homf ‘𝐶) = (Homf ‘𝐶) |
| 12 | eqid 2737 | . . 3 ⊢ (oppCat‘𝑂) = (oppCat‘𝑂) | |
| 13 | oppcbas.1 | . . . 4 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 14 | 13, 1 | oppchomf 17677 | . . 3 ⊢ tpos (Homf ‘𝐶) = (Homf ‘𝑂) |
| 15 | 12, 14 | oppchomf 17677 | . 2 ⊢ tpos tpos (Homf ‘𝐶) = (Homf ‘(oppCat‘𝑂)) |
| 16 | 11, 15 | eqtr3i 2762 | 1 ⊢ (Homf ‘𝐶) = (Homf ‘(oppCat‘𝑂)) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 × cxp 5622 dom cdm 5624 Rel wrel 5629 Fn wfn 6487 ‘cfv 6492 tpos ctpos 8168 Basecbs 17170 Homf chomf 17623 oppCatcoppc 17668 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-tpos 8169 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 df-7 12240 df-8 12241 df-9 12242 df-n0 12429 df-z 12516 df-dec 12636 df-sets 17125 df-slot 17143 df-ndx 17155 df-base 17171 df-hom 17235 df-cco 17236 df-homf 17627 df-oppc 17669 |
| This theorem is referenced by: 2oppccomf 17682 oppcepi 17697 oppchofcl 18217 oppcyon 18226 oyoncl 18227 oppccatb 49503 oppccicb 49538 funcoppc2 49630 natoppfb 49718 cmddu 50155 termolmd 50157 |
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