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Mirrors > Home > MPE Home > Th. List > cnvex | Structured version Visualization version GIF version |
Description: The converse of a set is a set. Corollary 6.8(1) of [TakeutiZaring] p. 26. (Contributed by NM, 19-Dec-2003.) |
Ref | Expression |
---|---|
cnvex.1 | ⊢ 𝐴 ∈ V |
Ref | Expression |
---|---|
cnvex | ⊢ ◡𝐴 ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnvex.1 | . 2 ⊢ 𝐴 ∈ V | |
2 | cnvexg 7623 | . 2 ⊢ (𝐴 ∈ V → ◡𝐴 ∈ V) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ ◡𝐴 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2110 Vcvv 3494 ◡ccnv 5548 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-xp 5555 df-rel 5556 df-cnv 5557 df-dm 5559 df-rn 5560 |
This theorem is referenced by: f1oexbi 7627 funcnvuni 7630 cnvf1o 7800 brtpos2 7892 pw2f1o 8616 sbthlem10 8630 fodomr 8662 ssenen 8685 cnfcomlem 9156 infxpenlem 9433 enfin2i 9737 fin1a2lem7 9822 fpwwe 10062 canthwelem 10066 axdc4uzlem 13345 hashfacen 13806 catcisolem 17360 oduleval 17735 gicsubgen 18412 isunit 19401 znle 20677 evpmss 20724 psgnevpmb 20725 ptbasfi 22183 nghmfval 23325 fta1glem2 24754 fta1blem 24756 lgsqrlem4 25919 tocycf 30754 evpmval 30782 altgnsg 30786 locfinreflem 31099 qqhval 31210 mbfmcnt 31521 derangenlem 32413 mthmval 32817 colinearex 33516 fvline 33600 ptrest 34885 poimir 34919 tendoi2 37925 dihopelvalcpre 38378 pw2f1ocnv 39627 cnvintabd 39956 clcnvlem 39976 frege133 40335 binomcxplemnotnn0 40681 fzisoeu 41560 isomushgr 43985 isomgrsym 43995 |
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