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Mirrors > Home > ILE Home > Th. List > snfig | Unicode version |
Description: A singleton is finite. For the proper class case, see snprc 3588. (Contributed by Jim Kingdon, 13-Apr-2020.) |
Ref | Expression |
---|---|
snfig |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1onn 6416 | . . 3 | |
2 | ensn1g 6691 | . . 3 | |
3 | breq2 3933 | . . . 4 | |
4 | 3 | rspcev 2789 | . . 3 |
5 | 1, 2, 4 | sylancr 410 | . 2 |
6 | isfi 6655 | . 2 | |
7 | 5, 6 | sylibr 133 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wcel 1480 wrex 2417 csn 3527 class class class wbr 3929 com 4504 c1o 6306 cen 6632 cfn 6634 |
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-in1 603 ax-in2 604 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 2121 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-un 4355 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-id 4215 df-suc 4293 df-iom 4505 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-fun 5125 df-fn 5126 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 df-1o 6313 df-en 6635 df-fin 6637 |
This theorem is referenced by: fiprc 6709 ssfiexmid 6770 domfiexmid 6772 diffitest 6781 unfiexmid 6806 prfidisj 6815 tpfidisj 6816 ssfii 6862 infpwfidom 7054 hashsng 10544 fihashen1 10545 hashunsng 10553 hashprg 10554 hashdifsn 10565 hashdifpr 10566 hashxp 10572 fsumsplitsnun 11188 fsum2dlemstep 11203 fisumcom2 11207 fsumconst 11223 fsumge1 11230 fsum00 11231 hash2iun1dif1 11249 phicl2 11890 |
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