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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 3596. (Contributed by Jim Kingdon, 13-Apr-2020.) |
Ref | Expression |
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snfig |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1onn 6424 |
. . 3
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2 | ensn1g 6699 |
. . 3
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3 | breq2 3941 |
. . . 4
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4 | 3 | rspcev 2793 |
. . 3
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5 | 1, 2, 4 | sylancr 411 |
. 2
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6 | isfi 6663 |
. 2
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7 | 5, 6 | sylibr 133 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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 604 ax-in2 605 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-13 1492 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-nul 4062 ax-pow 4106 ax-pr 4139 ax-un 4363 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-eu 2003 df-mo 2004 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rex 2423 df-v 2691 df-dif 3078 df-un 3080 df-in 3082 df-ss 3089 df-nul 3369 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-int 3780 df-br 3938 df-opab 3998 df-id 4223 df-suc 4301 df-iom 4513 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-rn 4558 df-fun 5133 df-fn 5134 df-f 5135 df-f1 5136 df-fo 5137 df-f1o 5138 df-1o 6321 df-en 6643 df-fin 6645 |
This theorem is referenced by: fiprc 6717 ssfiexmid 6778 domfiexmid 6780 diffitest 6789 unfiexmid 6814 prfidisj 6823 tpfidisj 6824 ssfii 6870 infpwfidom 7071 hashsng 10576 fihashen1 10577 hashunsng 10585 hashprg 10586 hashdifsn 10597 hashdifpr 10598 hashxp 10604 fsumsplitsnun 11220 fsum2dlemstep 11235 fisumcom2 11239 fsumconst 11255 fsumge1 11262 fsum00 11263 hash2iun1dif1 11281 phicl2 11926 |
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