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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 6641 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → (𝐹 ∘ ◡𝐹) = ( I ↾ 𝐵)) | |
2 | 1 | fveq1d 6672 | . . 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 6627 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ◡𝐹:𝐵–1-1-onto→𝐴) | |
5 | f1of 6615 | . . . 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 6760 | . . 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 6935 | . . 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 2864 | 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 5459 ◡ccnv 5554 ↾ cres 5557 ∘ ccom 5559 ⟶wf 6351 –1-1-onto→wf1o 6354 ‘cfv 6355 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 |
This theorem is referenced by: f1ocnvfvb 7036 fveqf1o 7058 isocnv 7083 f1oiso2 7105 weniso 7107 ordiso2 8979 cantnfle 9134 cantnfp1lem3 9143 cantnflem1b 9149 cantnflem1d 9151 cantnflem1 9152 cnfcom2lem 9164 cnfcom2 9165 cnfcom3lem 9166 acndom2 9480 iunfictbso 9540 ttukeylem7 9937 fpwwe2lem6 10057 fpwwe2lem7 10058 uzrdglem 13326 uzrdgsuci 13329 fzennn 13337 axdc4uzlem 13352 seqf1olem1 13410 seqf1olem2 13411 hashfz1 13707 seqcoll 13823 seqcoll2 13824 summolem3 15071 summolem2a 15072 ackbijnn 15183 prodmolem3 15287 prodmolem2a 15288 sadcaddlem 15806 sadaddlem 15815 sadasslem 15819 sadeq 15821 phimullem 16116 eulerthlem2 16119 catcisolem 17366 mhmf1o 17966 ghmf1o 18388 f1omvdconj 18574 gsumval3eu 19024 gsumval3 19027 lmhmf1o 19818 fidomndrnglem 20079 basqtop 22319 tgqtop 22320 ordthmeolem 22409 symgtgp 22714 imasf1obl 23098 xrhmeo 23550 ovoliunlem2 24104 vitalilem2 24210 dvcnvlem 24573 dvcnv 24574 dvcnvre 24616 efif1olem4 25129 eff1olem 25132 eflog 25160 dvrelog 25220 dvlog 25234 asinrebnd 25479 sqff1o 25759 lgsqrlem4 25925 cnvmot 26327 f1otrg 26657 f1otrge 26658 axcontlem10 26759 usgrnbcnvfv 27147 wlkiswwlks2lem4 27650 clwlkclwwlklem2a4 27775 cnvunop 29695 unopadj 29696 bracnvbra 29890 abliso 30683 cycpmco2lem4 30771 cycpmco2lem5 30772 cycpmco2lem6 30773 cycpmco2lem7 30774 cycpmco2 30775 mndpluscn 31169 cvmfolem 32526 cvmliftlem6 32537 f1ocan1fv 35016 ismtycnv 35095 ismtyima 35096 ismtybndlem 35099 rngoisocnv 35274 lautcnvle 37240 lautcvr 37243 lautj 37244 lautm 37245 ltrncnvatb 37289 ltrncnvel 37293 ltrncnv 37297 ltrneq2 37299 cdlemg17h 37819 diainN 38208 diasslssN 38210 doca3N 38278 dihcnvid2 38424 dochocss 38517 mapdcnvid2 38808 rmxyval 39532 isomgrsym 44021 mgmhmf1o 44074 |
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