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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 8950. (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 8950 | . 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 5085 ≈ cen 8890 |
| 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 2708 ax-sep 5231 ax-pow 5307 ax-pr 5375 ax-un 7689 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-er 8643 df-en 8894 |
| This theorem is referenced by: f1imaeng 8961 f1imaen2g 8962 xpdom3 9013 omxpen 9017 mapdom2 9086 mapdom3 9087 limensuci 9091 unxpdom2 9170 sucxpdom 9171 marypha1lem 9346 infdifsn 9578 cnfcom2lem 9622 cardidm 9883 cardnueq0 9888 carden2a 9890 card1 9892 cardsdomel 9898 isinffi 9916 en2eqpr 9929 infxpenlem 9935 infxpidm2 9939 alephnbtwn2 9994 alephsucdom 10001 mappwen 10034 finnisoeu 10035 djuen 10092 dju1en 10094 djuassen 10101 xpdjuen 10102 infdju1 10112 pwdju1 10113 onadju 10116 cardadju 10117 djunum 10118 nnadju 10120 ficardadju 10122 ficardun 10123 pwsdompw 10125 infdif2 10131 infxp 10136 ackbij1lem5 10145 cfss 10187 ominf4 10234 isfin4p1 10237 fin23lem27 10250 alephsuc3 10503 canthp1lem1 10575 canthp1lem2 10576 gchdju1 10579 gchinf 10580 pwfseqlem5 10586 pwdjundom 10590 gchdjuidm 10591 gchxpidm 10592 gchhar 10602 inttsk 10697 tskcard 10704 r1tskina 10705 tskuni 10706 hashkf 14294 fz1isolem 14423 isercolllem2 15628 summolem2 15678 zsum 15680 prodmolem2 15900 zprod 15902 4sqlem11 16926 mreexexd 17614 psgnunilem1 19468 simpgnsgd 20077 frlmisfrlm 21828 frlmiscvec 21829 ovoliunlem1 25469 rabfodom 32575 unidifsnel 32605 unidifsnne 32606 fnpreimac 32743 hashpss 32882 hashimaf1 32884 lindsdom 37935 matunitlindflem2 37938 heicant 37976 mblfinlem1 37978 sticksstones18 42603 sticksstones19 42604 eldioph2lem1 43192 isnumbasgrplem3 43533 fiuneneq 43620 harval3 43965 enrelmap 44424 enmappw 44426 |
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