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Mirrors > Home > ILE Home > Th. List > enfii | Unicode version |
Description: A set equinumerous to a finite set is finite. (Contributed by Mario Carneiro, 12-Mar-2015.) |
Ref | Expression |
---|---|
enfii |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | enfi 6775 | . 2 | |
2 | 1 | biimparc 297 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wcel 1481 class class class wbr 3937 cen 6640 cfn 6642 |
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 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-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-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-opab 3998 df-id 4223 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-rn 4558 df-res 4559 df-ima 4560 df-fun 5133 df-fn 5134 df-f 5135 df-f1 5136 df-fo 5137 df-f1o 5138 df-er 6437 df-en 6643 df-fin 6645 |
This theorem is referenced by: dif1en 6781 diffisn 6795 xpfi 6826 fisseneq 6828 fundmfi 6834 relcnvfi 6837 f1ofi 6839 f1dmvrnfibi 6840 f1finf1o 6843 en1eqsn 6844 exmidonfinlem 7066 fzfig 10234 hashennnuni 10557 hashennn 10558 summodclem2 11183 zsumdc 11185 prodmodclem2 11378 zproddc 11380 |
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