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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 5455 |
. . 3
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2 | foeq1 5473 |
. . 3
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3 | 1, 2 | anbi12d 473 |
. 2
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4 | df-f1o 5262 |
. 2
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5 | df-f1o 5262 |
. 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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-br 4031 df-opab 4092 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-rn 4671 df-fun 5257 df-fn 5258 df-f 5259 df-f1 5260 df-fo 5261 df-f1o 5262 |
This theorem is referenced by: f1oeq123d 5495 f1oeq1d 5496 f1ocnvb 5515 f1orescnv 5517 f1ovi 5540 f1osng 5542 f1oresrab 5724 fsn 5731 isoeq1 5845 mapsn 6746 mapsnf1o3 6753 f1oen3g 6810 ensn1 6852 xpcomf1o 6881 xpen 6903 seq3f1olemstep 10588 seq3f1olemp 10589 seqf1oglem2 10594 seqf1og 10595 fihasheqf1oi 10861 fihashf1rn 10862 hashfacen 10910 summodc 11529 fsum3 11533 prodmodc 11724 fprodseq 11729 eulerthlemh 12372 relogf1o 15037 2lgslem1 15248 |
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