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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 9001. (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 9001 | . 2 ⊢ (𝐴 ≈ 𝐵 → 𝐵 ≈ 𝐴) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → 𝐵 ≈ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 class class class wbr 5110 ≈ cen 8941 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-er 8695 df-en 8945 |
| This theorem is referenced by: f1imaeng 9012 f1imaen2g 9013 xpdom3 9064 omxpen 9068 mapdom2 9137 mapdom3 9138 limensuci 9142 unxpdom2 9221 sucxpdom 9222 marypha1lem 9394 infdifsn 9627 cnfcom2lem 9671 cardidm 9946 cardnueq0 9951 carden2a 9953 card1 9955 cardsdomel 9961 isinffi 9979 en2eqpr 9992 infxpenlem 9998 infxpidm2 10002 alephnbtwn2 10057 alephsucdom 10064 mappwen 10097 finnisoeu 10098 djuen 10154 dju1en 10156 djuassen 10163 xpdjuen 10164 infdju1 10174 pwdju1 10175 onadju 10178 cardadju 10179 djunum 10180 nnadju 10182 ficardadju 10184 ficardun 10185 pwsdompw 10187 infdif2 10193 infxp 10198 ackbij1lem5 10207 cfss 10250 ominf4 10297 isfin4p1 10300 fin23lem27 10313 alephsuc3 10566 canthp1lem1 10638 canthp1lem2 10639 gchdju1 10642 gchinf 10643 pwfseqlem5 10649 pwdjundom 10653 gchdjuidm 10654 gchxpidm 10655 gchhar 10665 inttsk 10760 tskcard 10767 r1tskina 10768 tskuni 10769 hashkf 14370 hashpss 14448 fz1isolem 14500 isercolllem2 15719 summolem2 15769 zsum 15771 prodmolem2 15991 zprod 15993 4sqlem11 17016 mreexexd 17705 psgnunilem1 19564 simpgnsgd 20173 frlmisfrlm 21979 frlmiscvec 21980 ovoliunlem1 25642 rabfodom 32832 unidifsnel 32862 unidifsnne 32863 fnpreimac 32996 hashimaf1 33136 1enumen 35466 lindsdom 38246 matunitlindflem2 38249 heicant 38287 mblfinlem1 38289 sticksstones18 42912 sticksstones19 42913 eldioph2lem1 43474 isnumbasgrplem3 43815 fiuneneq 43902 harval3 44247 enrelmap 44706 enmappw 44708 |
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