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Mirrors > Home > ILE Home > Th. List > ensymd | GIF version |
Description: Symmetry of equinumerosity. Deduction form of ensym 6668. (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 6668 | . 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 3924 ≈ cen 6625 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-br 3925 df-opab 3985 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-res 4546 df-ima 4547 df-fun 5120 df-fn 5121 df-f 5122 df-f1 5123 df-fo 5124 df-f1o 5125 df-er 6422 df-en 6628 |
This theorem is referenced by: f1imaeng 6679 f1imaen2g 6680 en2sn 6700 xpdom3m 6721 phplem4 6742 phplem4dom 6749 php5dom 6750 phpm 6752 phplem4on 6754 dif1en 6766 dif1enen 6767 fisbth 6770 fin0 6772 fin0or 6773 fientri3 6796 unsnfidcex 6801 unsnfidcel 6802 fiintim 6810 fisseneq 6813 f1ofi 6824 endjusym 6974 eninl 6975 eninr 6976 pm54.43 7039 djuen 7060 dju1en 7062 djuassen 7066 xpdjuen 7067 uzenom 10191 hashennnuni 10518 hashennn 10519 hashcl 10520 hashfz1 10522 hashen 10523 fihashfn 10539 fihashdom 10542 hashunlem 10543 zfz1iso 10577 summodclem2 11144 zsumdc 11146 ennnfonelemen 11923 exmidunben 11928 ctinfom 11930 ctinf 11932 pwf1oexmid 13183 sbthom 13210 |
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