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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 8947. (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 8947 | . 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 5079 ≈ cen 8887 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-opab 5142 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-er 8640 df-en 8891 |
| This theorem is referenced by: f1imaeng 8958 f1imaen2g 8959 xpdom3 9010 omxpen 9014 mapdom2 9083 mapdom3 9084 limensuci 9088 unxpdom2 9167 sucxpdom 9168 marypha1lem 9343 infdifsn 9576 cnfcom2lem 9620 cardidm 9881 cardnueq0 9886 carden2a 9888 card1 9890 cardsdomel 9896 isinffi 9914 en2eqpr 9927 infxpenlem 9933 infxpidm2 9937 alephnbtwn2 9992 alephsucdom 9999 mappwen 10032 finnisoeu 10033 djuen 10090 dju1en 10092 djuassen 10099 xpdjuen 10100 infdju1 10110 pwdju1 10111 onadju 10114 cardadju 10115 djunum 10116 nnadju 10118 ficardadju 10120 ficardun 10121 pwsdompw 10123 infdif2 10129 infxp 10134 ackbij1lem5 10143 cfss 10185 ominf4 10232 isfin4p1 10235 fin23lem27 10248 alephsuc3 10501 canthp1lem1 10573 canthp1lem2 10574 gchdju1 10577 gchinf 10578 pwfseqlem5 10584 pwdjundom 10588 gchdjuidm 10589 gchxpidm 10590 gchhar 10600 inttsk 10695 tskcard 10702 r1tskina 10703 tskuni 10704 hashkf 14292 fz1isolem 14421 isercolllem2 15626 summolem2 15676 zsum 15678 prodmolem2 15898 zprod 15900 4sqlem11 16924 mreexexd 17612 psgnunilem1 19466 simpgnsgd 20075 frlmisfrlm 21830 frlmiscvec 21831 ovoliunlem1 25494 rabfodom 32600 unidifsnel 32630 unidifsnne 32631 fnpreimac 32769 hashpss 32908 hashimaf1 32910 lindsdom 37988 matunitlindflem2 37991 heicant 38029 mblfinlem1 38031 sticksstones18 42656 sticksstones19 42657 eldioph2lem1 43216 isnumbasgrplem3 43557 fiuneneq 43644 harval3 43989 enrelmap 44448 enmappw 44450 |
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