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Mirrors > Home > ILE Home > Th. List > f1oeq1 | Unicode version |
Description: Equality theorem for one-to-one onto functions. (Contributed by NM, 10-Feb-1997.) |
Ref | Expression |
---|---|
f1oeq1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1eq1 5418 |
. . 3
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2 | foeq1 5436 |
. . 3
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3 | 1, 2 | anbi12d 473 |
. 2
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4 | df-f1o 5225 |
. 2
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5 | df-f1o 5225 |
. 2
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6 | 3, 4, 5 | 3bitr4g 223 |
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 106 ax-ia2 107 ax-ia3 108 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-v 2741 df-un 3135 df-in 3137 df-ss 3144 df-sn 3600 df-pr 3601 df-op 3603 df-br 4006 df-opab 4067 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-fun 5220 df-fn 5221 df-f 5222 df-f1 5223 df-fo 5224 df-f1o 5225 |
This theorem is referenced by: f1oeq123d 5457 f1oeq1d 5458 f1ocnvb 5477 f1orescnv 5479 f1ovi 5502 f1osng 5504 f1oresrab 5684 fsn 5691 isoeq1 5805 mapsn 6693 mapsnf1o3 6700 f1oen3g 6757 ensn1 6799 xpcomf1o 6828 xpen 6848 seq3f1olemstep 10504 seq3f1olemp 10505 fihasheqf1oi 10770 fihashf1rn 10771 hashfacen 10819 summodc 11394 fsum3 11398 prodmodc 11589 fprodseq 11594 eulerthlemh 12234 relogf1o 14470 |
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