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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 8943. (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 8943 | . 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 5086 ≈ cen 8883 |
| 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 5231 ax-pow 5302 ax-pr 5370 ax-un 7682 |
| 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 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-er 8636 df-en 8887 |
| This theorem is referenced by: f1imaeng 8954 f1imaen2g 8955 xpdom3 9006 omxpen 9010 mapdom2 9079 mapdom3 9080 limensuci 9084 unxpdom2 9163 sucxpdom 9164 marypha1lem 9339 infdifsn 9569 cnfcom2lem 9613 cardidm 9874 cardnueq0 9879 carden2a 9881 card1 9883 cardsdomel 9889 isinffi 9907 en2eqpr 9920 infxpenlem 9926 infxpidm2 9930 alephnbtwn2 9985 alephsucdom 9992 mappwen 10025 finnisoeu 10026 djuen 10083 dju1en 10085 djuassen 10092 xpdjuen 10093 infdju1 10103 pwdju1 10104 onadju 10107 cardadju 10108 djunum 10109 nnadju 10111 ficardadju 10113 ficardun 10114 pwsdompw 10116 infdif2 10122 infxp 10127 ackbij1lem5 10136 cfss 10178 ominf4 10225 isfin4p1 10228 fin23lem27 10241 alephsuc3 10494 canthp1lem1 10566 canthp1lem2 10567 gchdju1 10570 gchinf 10571 pwfseqlem5 10577 pwdjundom 10581 gchdjuidm 10582 gchxpidm 10583 gchhar 10593 inttsk 10688 tskcard 10695 r1tskina 10696 tskuni 10697 hashkf 14285 fz1isolem 14414 isercolllem2 15619 summolem2 15669 zsum 15671 prodmolem2 15891 zprod 15893 4sqlem11 16917 mreexexd 17605 psgnunilem1 19459 simpgnsgd 20068 frlmisfrlm 21838 frlmiscvec 21839 ovoliunlem1 25479 rabfodom 32590 unidifsnel 32620 unidifsnne 32621 fnpreimac 32758 hashpss 32897 hashimaf1 32899 lindsdom 37949 matunitlindflem2 37952 heicant 37990 mblfinlem1 37992 sticksstones18 42617 sticksstones19 42618 eldioph2lem1 43206 isnumbasgrplem3 43551 fiuneneq 43638 harval3 43983 enrelmap 44442 enmappw 44444 |
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