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| Mirrors > Home > ILE Home > Th. List > ensymd | GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 6950. (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 6950 | . 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 4086 ≈ cen 6902 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 df-fo 5330 df-f1o 5331 df-er 6697 df-en 6905 |
| This theorem is referenced by: f1imaeng 6961 f1imaen2g 6962 en2sn 6983 xpdom3m 7013 phplem4 7036 phplem4dom 7043 php5dom 7044 phpm 7047 phplem4on 7049 dif1en 7063 dif1enen 7064 fisbth 7067 fin0 7069 fin0or 7070 fidcen 7083 fientri3 7102 unsnfidcex 7107 unsnfidcel 7108 fiintim 7118 fisseneq 7121 f1ofi 7136 endjusym 7289 eninl 7290 eninr 7291 pm54.43 7389 djuen 7419 dju1en 7421 djuassen 7425 xpdjuen 7426 uzenom 10680 hashennnuni 11034 hashennn 11035 hashcl 11036 hashfz1 11038 hashen 11039 fihashfn 11056 fihashdom 11059 hashunlem 11060 zfz1iso 11098 summodclem2 11936 zsumdc 11938 prodmodclem2 12131 zproddc 12133 4sqlem11 12967 ennnfonelemen 13035 exmidunben 13040 ctinfom 13042 ctinf 13044 isnzr2 14191 znfi 14662 znhash 14663 usgrsizedgen 16057 upgr2wlkdc 16186 eupthfi 16260 pwf1oexmid 16550 nnnninfen 16573 sbthom 16580 |
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