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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 6076 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → (𝐹 ∘ ◡𝐹) = ( I ↾ 𝐵)) | |
2 | 1 | fveq1d 6105 | . . 3 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ((𝐹 ∘ ◡𝐹)‘𝐶) = (( I ↾ 𝐵)‘𝐶)) |
3 | 2 | adantr 480 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (( I ↾ 𝐵)‘𝐶)) |
4 | f1ocnv 6062 | . . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → ◡𝐹:𝐵–1-1-onto→𝐴) | |
5 | f1of 6050 | . . . 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 6185 | . . 3 ⊢ ((◡𝐹:𝐵⟶𝐴 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (𝐹‘(◡𝐹‘𝐶))) | |
8 | 6, 7 | sylan 487 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → ((𝐹 ∘ ◡𝐹)‘𝐶) = (𝐹‘(◡𝐹‘𝐶))) |
9 | fvresi 6344 | . . 3 ⊢ (𝐶 ∈ 𝐵 → (( I ↾ 𝐵)‘𝐶) = 𝐶) | |
10 | 9 | adantl 481 | . 2 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → (( I ↾ 𝐵)‘𝐶) = 𝐶) |
11 | 3, 8, 10 | 3eqtr3d 2652 | 1 ⊢ ((𝐹:𝐴–1-1-onto→𝐵 ∧ 𝐶 ∈ 𝐵) → (𝐹‘(◡𝐹‘𝐶)) = 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 = wceq 1475 ∈ wcel 1977 I cid 4948 ◡ccnv 5037 ↾ cres 5040 ∘ ccom 5042 ⟶wf 5800 –1-1-onto→wf1o 5803 ‘cfv 5804 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 |
This theorem is referenced by: f1ocnvfvb 6435 fveqf1o 6457 isocnv 6480 f1oiso2 6502 weniso 6504 ordiso2 8303 cantnfle 8451 cantnfp1lem3 8460 cantnflem1b 8466 cantnflem1d 8468 cantnflem1 8469 cnfcom2lem 8481 cnfcom2 8482 cnfcom3lem 8483 acndom2 8760 iunfictbso 8820 ttukeylem7 9220 fpwwe2lem6 9336 fpwwe2lem7 9337 uzrdglem 12618 uzrdgsuci 12621 fzennn 12629 axdc4uzlem 12644 seqf1olem1 12702 seqf1olem2 12703 hashfz1 12996 seqcoll 13105 seqcoll2 13106 summolem3 14292 summolem2a 14293 ackbijnn 14399 prodmolem3 14502 prodmolem2a 14503 sadcaddlem 15017 sadaddlem 15026 sadasslem 15030 sadeq 15032 phimullem 15322 eulerthlem2 15325 catcisolem 16579 mhmf1o 17168 ghmf1o 17513 f1omvdconj 17689 gsumval3eu 18128 gsumval3 18131 lmhmf1o 18867 fidomndrnglem 19127 basqtop 21324 tgqtop 21325 ordthmeolem 21414 symgtgp 21715 imasf1obl 22103 xrhmeo 22553 ovoliunlem2 23078 vitalilem2 23184 dvcnvlem 23543 dvcnv 23544 dvcnvre 23586 efif1olem4 24095 eff1olem 24098 eflog 24127 dvrelog 24183 dvlog 24197 asinrebnd 24428 sqff1o 24708 lgsqrlem4 24874 cnvmot 25236 f1otrg 25551 f1otrge 25552 axcontlem10 25653 nbgracnvfv 25969 cusgrares 26001 usgra2adedgspthlem1 26139 constr3trllem5 26182 cusconngra 26204 wlkiswwlk2lem4 26222 clwlkisclwwlklem2a4 26312 2pthfrgra 26538 cnvunop 28161 unopadj 28162 bracnvbra 28356 abliso 29027 mndpluscn 29300 cvmfolem 30515 cvmliftlem6 30526 f1ocan1fv 32691 ismtycnv 32771 ismtyima 32772 ismtybndlem 32775 rngoisocnv 32950 lautcnvle 34393 lautcvr 34396 lautj 34397 lautm 34398 ltrncnvatb 34442 ltrncnvel 34446 ltrncnv 34450 ltrneq2 34452 cdlemg17h 34974 diainN 35364 diasslssN 35366 doca3N 35434 dihcnvid2 35580 dochocss 35673 mapdcnvid2 35964 rmxyval 36498 usgrnbcnvfv 40593 1wlkiswwlks2lem4 41069 clwlkclwwlklem2a4 41206 mgmhmf1o 41577 |
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