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| Mirrors > Home > ILE Home > Th. List > ensymd | GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 6960. (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 6960 | . 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 4089 ≈ cen 6912 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-rex 2515 df-v 2803 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-br 4090 df-opab 4152 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-ima 4740 df-fun 5330 df-fn 5331 df-f 5332 df-f1 5333 df-fo 5334 df-f1o 5335 df-er 6707 df-en 6915 |
| This theorem is referenced by: f1imaeng 6971 f1imaen2g 6972 en2sn 6993 xpdom3m 7023 phplem4 7046 phplem4dom 7053 php5dom 7054 phpm 7057 phplem4on 7059 dif1en 7073 dif1enen 7074 fisbth 7077 fin0 7079 fin0or 7080 fidcen 7093 fientri3 7112 unsnfidcex 7117 unsnfidcel 7118 fiintim 7128 fisseneq 7132 f1ofi 7147 endjusym 7300 eninl 7301 eninr 7302 pm54.43 7400 djuen 7431 dju1en 7433 djuassen 7437 xpdjuen 7438 uzenom 10693 hashennnuni 11047 hashennn 11048 hashcl 11049 hashfz1 11051 hashen 11052 fihashfn 11069 fihashdom 11072 hashunlem 11073 zfz1iso 11111 summodclem2 11966 zsumdc 11968 prodmodclem2 12161 zproddc 12163 4sqlem11 12997 ennnfonelemen 13065 exmidunben 13070 ctinfom 13072 ctinf 13074 isnzr2 14222 znfi 14693 znhash 14694 usgrsizedgen 16093 upgr2wlkdc 16257 eupthfi 16331 pwf1oexmid 16660 nnnninfen 16686 sbthom 16693 |
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