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| Mirrors > Home > MPE Home > Th. List > ensymd | Structured version Visualization version GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 8954. (Contributed by David Moews, 1-May-2017.) |
| Ref | Expression |
|---|---|
| ensymd.1 | ⊢ (𝜑 → 𝐴 ≈ 𝐵) |
| Ref | Expression |
|---|---|
| ensymd | ⊢ (𝜑 → 𝐵 ≈ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ensymd.1 | . 2 ⊢ (𝜑 → 𝐴 ≈ 𝐵) | |
| 2 | ensym 8954 | . 2 ⊢ (𝐴 ≈ 𝐵 → 𝐵 ≈ 𝐴) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → 𝐵 ≈ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 class class class wbr 5100 ≈ cen 8894 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5245 ax-pow 5314 ax-pr 5381 ax-un 7692 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5529 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-er 8647 df-en 8898 |
| This theorem is referenced by: f1imaeng 8965 f1imaen2g 8966 xpdom3 9017 omxpen 9021 mapdom2 9090 mapdom3 9091 limensuci 9095 unxpdom2 9174 sucxpdom 9175 marypha1lem 9350 infdifsn 9580 cnfcom2lem 9624 cardidm 9885 cardnueq0 9890 carden2a 9892 card1 9894 cardsdomel 9900 isinffi 9918 en2eqpr 9931 infxpenlem 9937 infxpidm2 9941 alephnbtwn2 9996 alephsucdom 10003 mappwen 10036 finnisoeu 10037 djuen 10094 dju1en 10096 djuassen 10103 xpdjuen 10104 infdju1 10114 pwdju1 10115 onadju 10118 cardadju 10119 djunum 10120 nnadju 10122 ficardadju 10124 ficardun 10125 pwsdompw 10127 infdif2 10133 infxp 10138 ackbij1lem5 10147 cfss 10189 ominf4 10236 isfin4p1 10239 fin23lem27 10252 alephsuc3 10505 canthp1lem1 10577 canthp1lem2 10578 gchdju1 10581 gchinf 10582 pwfseqlem5 10588 pwdjundom 10592 gchdjuidm 10593 gchxpidm 10594 gchhar 10604 inttsk 10699 tskcard 10706 r1tskina 10707 tskuni 10708 hashkf 14269 fz1isolem 14398 isercolllem2 15603 summolem2 15653 zsum 15655 prodmolem2 15872 zprod 15874 4sqlem11 16897 mreexexd 17585 psgnunilem1 19439 simpgnsgd 20048 frlmisfrlm 21820 frlmiscvec 21821 ovoliunlem1 25476 rabfodom 32598 unidifsnel 32628 unidifsnne 32629 fnpreimac 32766 hashpss 32906 hashimaf1 32908 lindsdom 37894 matunitlindflem2 37897 heicant 37935 mblfinlem1 37937 sticksstones18 42563 sticksstones19 42564 eldioph2lem1 43146 isnumbasgrplem3 43491 fiuneneq 43578 harval3 43923 enrelmap 44382 enmappw 44384 |
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