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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 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1eq1 5573 |
. . 3
| |
| 2 | foeq1 5591 |
. . 3
| |
| 3 | 1, 2 | anbi12d 473 |
. 2
|
| 4 | df-f1o 5364 |
. 2
| |
| 5 | df-f1o 5364 |
. 2
| |
| 6 | 3, 4, 5 | 3bitr4g 223 |
1
|
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-sn 3700 df-pr 3701 df-op 3703 df-br 4115 df-opab 4177 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-fun 5359 df-fn 5360 df-f 5361 df-f1 5362 df-fo 5363 df-f1o 5364 |
| This theorem is referenced by: f1oeq123d 5613 f1oeq1d 5614 f1ocnvb 5633 f1orescnv 5635 f1ovi 5660 f1osng 5662 f1oresrab 5847 fsn 5854 isoeq1 5980 mapsnd 6936 mapsn 6938 mapsnf1o3 6945 f1oen4g 7004 f1oen3g 7006 ensn1 7049 en2prd 7072 xpcomf1o 7089 xpen 7111 seq3f1olemstep 10900 seq3f1olemp 10901 seqf1oglem2 10906 seqf1og 10907 fihasheqf1oi 11175 fihashf1rn 11176 hashfacen 11233 fzf1o 12086 summodc 12094 fsum3 12098 prodmodc 12289 fprodseq 12294 eulerthlemh 12953 gfsumval 14102 relogf1o 15852 2lgslem1 16090 |
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