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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 8980. (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 8980 | . 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 5099 ≈ cen 8920 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-pow 5321 ax-pr 5389 ax-un 7714 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-er 8673 df-en 8924 |
| This theorem is referenced by: f1imaeng 8991 f1imaen2g 8992 xpdom3 9043 omxpen 9047 mapdom2 9116 mapdom3 9117 limensuci 9121 unxpdom2 9200 sucxpdom 9201 marypha1lem 9376 infdifsn 9609 cnfcom2lem 9653 cardidm 9914 cardnueq0 9919 carden2a 9921 card1 9923 cardsdomel 9929 isinffi 9947 en2eqpr 9960 infxpenlem 9966 infxpidm2 9970 alephnbtwn2 10025 alephsucdom 10032 mappwen 10065 finnisoeu 10066 djuen 10123 dju1en 10125 djuassen 10132 xpdjuen 10133 infdju1 10143 pwdju1 10144 onadju 10147 cardadju 10148 djunum 10149 nnadju 10151 ficardadju 10153 ficardun 10154 pwsdompw 10156 infdif2 10162 infxp 10167 ackbij1lem5 10176 cfss 10219 ominf4 10266 isfin4p1 10269 fin23lem27 10282 alephsuc3 10535 canthp1lem1 10607 canthp1lem2 10608 gchdju1 10611 gchinf 10612 pwfseqlem5 10618 pwdjundom 10622 gchdjuidm 10623 gchxpidm 10624 gchhar 10634 inttsk 10729 tskcard 10736 r1tskina 10737 tskuni 10738 hashkf 14342 fz1isolem 14471 isercolllem2 15676 summolem2 15726 zsum 15728 prodmolem2 15948 zprod 15950 4sqlem11 16974 mreexexd 17663 psgnunilem1 19516 simpgnsgd 20125 frlmisfrlm 21880 frlmiscvec 21881 ovoliunlem1 25544 rabfodom 32653 unidifsnel 32683 unidifsnne 32684 fnpreimac 32822 hashpss 32961 hashimaf1 32963 lindsdom 38077 matunitlindflem2 38080 heicant 38118 mblfinlem1 38120 sticksstones18 42745 sticksstones19 42746 eldioph2lem1 43305 isnumbasgrplem3 43646 fiuneneq 43733 harval3 44078 enrelmap 44537 enmappw 44539 |
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