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Mirrors > Home > MPE Home > Th. List > f1ocnvfv2 | Structured version Visualization version GIF version |
Description: The value of the converse value of a one-to-one onto function. (Contributed by NM, 20-May-2004.) |
Ref | Expression |
---|---|
f1ocnvfv2 | ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → (𝐹‘(◡𝐹‘𝐶)) = 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1ococnv2 6643 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → (𝐹 ∘ ◡𝐹) = ( I ↾ 𝐵)) | |
2 | 1 | fveq1d 6674 | . . 3 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ((𝐹 ∘ ◡𝐹)‘𝐶) = (( I ↾ 𝐵)‘𝐶)) |
3 | 2 | adantr 483 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (( I ↾ 𝐵)‘𝐶)) |
4 | f1ocnv 6629 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ◡𝐹:𝐵–1-1-onto→𝐴) | |
5 | f1of 6617 | . . . 4 ⊢ (◡𝐹:𝐵–1-1-onto→𝐴 → ◡𝐹:𝐵⟶𝐴) | |
6 | 4, 5 | syl 17 | . . 3 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ◡𝐹:𝐵⟶𝐴) |
7 | fvco3 6762 | . . 3 ⊢ ((◡𝐹:𝐵⟶𝐴 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (𝐹‘(◡𝐹‘𝐶))) | |
8 | 6, 7 | sylan 582 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (𝐹‘(◡𝐹‘𝐶))) |
9 | fvresi 6937 | . . 3 ⊢ (𝐶 ∈ 𝐵 → (( I ↾ 𝐵)‘𝐶) = 𝐶) | |
10 | 9 | adantl 484 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → (( I ↾ 𝐵)‘𝐶) = 𝐶) |
11 | 3, 8, 10 | 3eqtr3d 2866 | 1 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → (𝐹‘(◡𝐹‘𝐶)) = 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1537 ∈ wcel 2114 I cid 5461 ◡ccnv 5556 ↾ cres 5559 ∘ ccom 5561 ⟶wf 6353 –1-1-onto→wf1o 6356 ‘cfv 6357 |
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-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 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-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-id 5462 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-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 |
This theorem is referenced by: f1ocnvfvb 7038 fveqf1o 7060 isocnv 7085 f1oiso2 7107 weniso 7109 ordiso2 8981 cantnfle 9136 cantnfp1lem3 9145 cantnflem1b 9151 cantnflem1d 9153 cantnflem1 9154 cnfcom2lem 9166 cnfcom2 9167 cnfcom3lem 9168 acndom2 9482 iunfictbso 9542 ttukeylem7 9939 fpwwe2lem6 10059 fpwwe2lem7 10060 uzrdglem 13328 uzrdgsuci 13331 fzennn 13339 axdc4uzlem 13354 seqf1olem1 13412 seqf1olem2 13413 hashfz1 13709 seqcoll 13825 seqcoll2 13826 summolem3 15073 summolem2a 15074 ackbijnn 15185 prodmolem3 15289 prodmolem2a 15290 sadcaddlem 15808 sadaddlem 15817 sadasslem 15821 sadeq 15823 phimullem 16118 eulerthlem2 16121 catcisolem 17368 mhmf1o 17968 ghmf1o 18390 f1omvdconj 18576 gsumval3eu 19026 gsumval3 19029 lmhmf1o 19820 fidomndrnglem 20081 basqtop 22321 tgqtop 22322 ordthmeolem 22411 symgtgp 22716 imasf1obl 23100 xrhmeo 23552 ovoliunlem2 24106 vitalilem2 24212 dvcnvlem 24575 dvcnv 24576 dvcnvre 24618 efif1olem4 25131 eff1olem 25134 eflog 25162 dvrelog 25222 dvlog 25236 asinrebnd 25481 sqff1o 25761 lgsqrlem4 25927 cnvmot 26329 f1otrg 26659 f1otrge 26660 axcontlem10 26761 usgrnbcnvfv 27149 wlkiswwlks2lem4 27652 clwlkclwwlklem2a4 27777 cnvunop 29697 unopadj 29698 bracnvbra 29892 abliso 30685 cycpmco2lem4 30773 cycpmco2lem5 30774 cycpmco2lem6 30775 cycpmco2lem7 30776 cycpmco2 30777 mndpluscn 31171 cvmfolem 32528 cvmliftlem6 32539 f1ocan1fv 35003 ismtycnv 35082 ismtyima 35083 ismtybndlem 35086 rngoisocnv 35261 lautcnvle 37227 lautcvr 37230 lautj 37231 lautm 37232 ltrncnvatb 37276 ltrncnvel 37280 ltrncnv 37284 ltrneq2 37286 cdlemg17h 37806 diainN 38195 diasslssN 38197 doca3N 38265 dihcnvid2 38411 dochocss 38504 mapdcnvid2 38795 rmxyval 39519 isomgrsym 44008 mgmhmf1o 44061 |
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