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| Mirrors > Home > ILE Home > Th. List > ensymd | GIF version | ||
| Description: Symmetry of equinumerosity. Deduction form of ensym 6955. (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 6955 | . 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 4088 ≈ cen 6907 |
| 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 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-er 6702 df-en 6910 |
| This theorem is referenced by: f1imaeng 6966 f1imaen2g 6967 en2sn 6988 xpdom3m 7018 phplem4 7041 phplem4dom 7048 php5dom 7049 phpm 7052 phplem4on 7054 dif1en 7068 dif1enen 7069 fisbth 7072 fin0 7074 fin0or 7075 fidcen 7088 fientri3 7107 unsnfidcex 7112 unsnfidcel 7113 fiintim 7123 fisseneq 7127 f1ofi 7142 endjusym 7295 eninl 7296 eninr 7297 pm54.43 7395 djuen 7426 dju1en 7428 djuassen 7432 xpdjuen 7433 uzenom 10688 hashennnuni 11042 hashennn 11043 hashcl 11044 hashfz1 11046 hashen 11047 fihashfn 11064 fihashdom 11067 hashunlem 11068 zfz1iso 11106 summodclem2 11945 zsumdc 11947 prodmodclem2 12140 zproddc 12142 4sqlem11 12976 ennnfonelemen 13044 exmidunben 13049 ctinfom 13051 ctinf 13053 isnzr2 14201 znfi 14672 znhash 14673 usgrsizedgen 16067 upgr2wlkdc 16231 eupthfi 16305 pwf1oexmid 16621 nnnninfen 16644 sbthom 16651 |
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