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| Mirrors > Home > ILE Home > Th. List > ensymd | GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 7023. (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 7023 | . 2 ⊢ (𝐴 ≈ 𝐵 → 𝐵 ≈ 𝐴) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝐵 ≈ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 class class class wbr 4111 ≈ cen 6975 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-f1o 5361 df-er 6769 df-en 6978 |
| This theorem is referenced by: f1imaeng 7034 f1imaen2g 7035 en2sn 7057 xpdom3m 7087 phplem4 7111 phplem4dom 7118 php5dom 7119 phpm 7122 phplem4on 7124 dif1en 7138 dif1enen 7139 fisbth 7142 fin0 7144 fin0or 7145 fidcen 7158 fientri3 7177 unsnfidcex 7182 unsnfidcel 7183 fiintim 7193 fisseneq 7197 f1ofi 7212 fipwfi 7274 endjusym 7389 eninl 7390 eninr 7391 pm54.43 7489 djuen 7520 dju1en 7522 djuassen 7526 xpdjuen 7527 uzenom 10794 hashennnuni 11150 hashennn 11151 hashcl 11152 hashfz1 11154 hashen 11155 fihashfn 11172 fihashdom 11175 hashunlem 11176 sseqn 11211 zfz1iso 11221 summodclem2 12076 zsumdc 12078 prodmodclem2 12271 zproddc 12273 4sqlem11 13107 ennnfonelemen 13193 exmidunben 13198 ctinfom 13200 ctinf 13202 isnzr2 14351 znfi 14852 znhash 14853 usgrsizedgen 16257 upgr2wlkdc 16421 eupthfi 16495 pwf1oexmid 16822 nnnninfen 16848 sbthom 16855 |
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