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| Mirrors > Home > ILE Home > Th. List > ensymd | GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 7062. (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 7062 | . 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 4128 ≈ cen 7014 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-er 6801 df-en 7017 |
| This theorem is referenced by: f1imaeng 7073 f1imaen2g 7074 en2sn 7096 xpdom3m 7126 phplem4 7150 phplem4dom 7157 php5dom 7158 phpm 7161 phplem4on 7163 dif1en 7177 dif1enen 7178 fisbth 7181 fin0 7183 fin0or 7184 fidcen 7197 fientri3 7216 unsnfidcex 7221 unsnfidcel 7222 fiintim 7232 fisseneq 7236 f1ofi 7251 fipwfi 7315 endjusym 7430 eninl 7431 eninr 7432 pm54.43 7530 djuen 7561 dju1en 7563 djuassen 7567 xpdjuen 7568 uzenom 10845 hashennnuni 11201 hashennn 11202 hashcl 11203 hashfz1 11205 hashen 11206 fihashfn 11223 fihashdom 11226 hashunlem 11227 sseqn 11262 hashf1lem2 11269 zfz1iso 11276 summodclem2 12132 zsumdc 12134 prodmodclem2 12327 zproddc 12329 4sqlem11 13163 ennnfonelemen 13295 exmidunben 13300 ctinfom 13302 ctinf 13304 gsumf1ofi 14143 isnzr2 14474 znfi 14973 znhash 14974 usgrsizedgen 16437 upgr2wlkdc 16601 eupthfi 16675 pwf1oexmid 17012 nnnninfen 17038 sbthom 17045 |
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