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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 16999. (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 2798 | . . . . 5 ⊢ (Homf ‘𝐶) = (Homf ‘𝐶) | |
2 | eqid 2798 | . . . . 5 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
3 | 1, 2 | homffn 16955 | . . . 4 ⊢ (Homf ‘𝐶) Fn ((Base‘𝐶) × (Base‘𝐶)) |
4 | fnrel 6424 | . . . 4 ⊢ ((Homf ‘𝐶) Fn ((Base‘𝐶) × (Base‘𝐶)) → Rel (Homf ‘𝐶)) | |
5 | 3, 4 | ax-mp 5 | . . 3 ⊢ Rel (Homf ‘𝐶) |
6 | relxp 5537 | . . . 4 ⊢ Rel ((Base‘𝐶) × (Base‘𝐶)) | |
7 | 3 | fndmi 6426 | . . . . 5 ⊢ dom (Homf ‘𝐶) = ((Base‘𝐶) × (Base‘𝐶)) |
8 | 7 | releqi 5616 | . . . 4 ⊢ (Rel dom (Homf ‘𝐶) ↔ Rel ((Base‘𝐶) × (Base‘𝐶))) |
9 | 6, 8 | mpbir 234 | . . 3 ⊢ Rel dom (Homf ‘𝐶) |
10 | tpostpos2 7896 | . . 3 ⊢ ((Rel (Homf ‘𝐶) ∧ Rel dom (Homf ‘𝐶)) → tpos tpos (Homf ‘𝐶) = (Homf ‘𝐶)) | |
11 | 5, 9, 10 | mp2an 691 | . 2 ⊢ tpos tpos (Homf ‘𝐶) = (Homf ‘𝐶) |
12 | eqid 2798 | . . 3 ⊢ (oppCat‘𝑂) = (oppCat‘𝑂) | |
13 | oppcbas.1 | . . . 4 ⊢ 𝑂 = (oppCat‘𝐶) | |
14 | 13, 1 | oppchomf 16982 | . . 3 ⊢ tpos (Homf ‘𝐶) = (Homf ‘𝑂) |
15 | 12, 14 | oppchomf 16982 | . 2 ⊢ tpos tpos (Homf ‘𝐶) = (Homf ‘(oppCat‘𝑂)) |
16 | 11, 15 | eqtr3i 2823 | 1 ⊢ (Homf ‘𝐶) = (Homf ‘(oppCat‘𝑂)) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1538 × cxp 5517 dom cdm 5519 Rel wrel 5524 Fn wfn 6319 ‘cfv 6324 tpos ctpos 7874 Basecbs 16475 Homf chomf 16929 oppCatcoppc 16973 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-pss 3900 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5425 df-eprel 5430 df-po 5438 df-so 5439 df-fr 5478 df-we 5480 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-pred 6116 df-ord 6162 df-on 6163 df-lim 6164 df-suc 6165 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-mpo 7140 df-om 7561 df-1st 7671 df-2nd 7672 df-tpos 7875 df-wrecs 7930 df-recs 7991 df-rdg 8029 df-er 8272 df-en 8493 df-dom 8494 df-sdom 8495 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-nn 11626 df-2 11688 df-3 11689 df-4 11690 df-5 11691 df-6 11692 df-7 11693 df-8 11694 df-9 11695 df-n0 11886 df-z 11970 df-dec 12087 df-ndx 16478 df-slot 16479 df-base 16481 df-sets 16482 df-hom 16581 df-cco 16582 df-homf 16933 df-oppc 16974 |
This theorem is referenced by: 2oppccomf 16987 oppcepi 17001 oppchofcl 17502 oppcyon 17511 oyoncl 17512 |
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