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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 8940. (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 8940 | . 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 5098 ≈ cen 8880 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 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 8635 df-en 8884 |
| This theorem is referenced by: f1imaeng 8951 f1imaen2g 8952 xpdom3 9003 omxpen 9007 mapdom2 9076 mapdom3 9077 limensuci 9081 unxpdom2 9160 sucxpdom 9161 marypha1lem 9336 infdifsn 9566 cnfcom2lem 9610 cardidm 9871 cardnueq0 9876 carden2a 9878 card1 9880 cardsdomel 9886 isinffi 9904 en2eqpr 9917 infxpenlem 9923 infxpidm2 9927 alephnbtwn2 9982 alephsucdom 9989 mappwen 10022 finnisoeu 10023 djuen 10080 dju1en 10082 djuassen 10089 xpdjuen 10090 infdju1 10100 pwdju1 10101 onadju 10104 cardadju 10105 djunum 10106 nnadju 10108 ficardadju 10110 ficardun 10111 pwsdompw 10113 infdif2 10119 infxp 10124 ackbij1lem5 10133 cfss 10175 ominf4 10222 isfin4p1 10225 fin23lem27 10238 alephsuc3 10491 canthp1lem1 10563 canthp1lem2 10564 gchdju1 10567 gchinf 10568 pwfseqlem5 10574 pwdjundom 10578 gchdjuidm 10579 gchxpidm 10580 gchhar 10590 inttsk 10685 tskcard 10692 r1tskina 10693 tskuni 10694 hashkf 14255 fz1isolem 14384 isercolllem2 15589 summolem2 15639 zsum 15641 prodmolem2 15858 zprod 15860 4sqlem11 16883 mreexexd 17571 psgnunilem1 19422 simpgnsgd 20031 frlmisfrlm 21803 frlmiscvec 21804 ovoliunlem1 25459 rabfodom 32580 unidifsnel 32610 unidifsnne 32611 fnpreimac 32749 padct 32797 hashpss 32889 hashimaf1 32891 lindsdom 37811 matunitlindflem2 37814 heicant 37852 mblfinlem1 37854 sticksstones18 42414 sticksstones19 42415 eldioph2lem1 42998 isnumbasgrplem3 43343 fiuneneq 43430 harval3 43775 enrelmap 44234 enmappw 44236 |
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