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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 8952. (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 8952 | . 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 5100 ≈ cen 8892 |
| 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 5243 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| 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 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-er 8645 df-en 8896 |
| This theorem is referenced by: f1imaeng 8963 f1imaen2g 8964 xpdom3 9015 omxpen 9019 mapdom2 9088 mapdom3 9089 limensuci 9093 unxpdom2 9172 sucxpdom 9173 marypha1lem 9348 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 14267 fz1isolem 14396 isercolllem2 15601 summolem2 15651 zsum 15653 prodmolem2 15870 zprod 15872 4sqlem11 16895 mreexexd 17583 psgnunilem1 19434 simpgnsgd 20043 frlmisfrlm 21815 frlmiscvec 21816 ovoliunlem1 25471 rabfodom 32591 unidifsnel 32621 unidifsnne 32622 fnpreimac 32759 padct 32807 hashpss 32899 hashimaf1 32901 lindsdom 37859 matunitlindflem2 37862 heicant 37900 mblfinlem1 37902 sticksstones18 42528 sticksstones19 42529 eldioph2lem1 43111 isnumbasgrplem3 43456 fiuneneq 43543 harval3 43888 enrelmap 44347 enmappw 44349 |
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