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Mirrors > Home > ILE Home > Th. List > f1orescnv | Unicode version |
Description: The converse of a one-to-one-onto restricted function. (Contributed by Paul Chapman, 21-Apr-2008.) |
Ref | Expression |
---|---|
f1orescnv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1ocnv 5164 |
. . 3
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2 | 1 | adantl 271 |
. 2
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3 | funcnvres 4997 |
. . . 4
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4 | df-ima 4378 |
. . . . . 6
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5 | dff1o5 5160 |
. . . . . . 7
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6 | 5 | simprbi 269 |
. . . . . 6
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7 | 4, 6 | syl5eq 2126 |
. . . . 5
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8 | 7 | reseq2d 4634 |
. . . 4
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9 | 3, 8 | sylan9eq 2134 |
. . 3
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10 | f1oeq1 5142 |
. . 3
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11 | 9, 10 | syl 14 |
. 2
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12 | 2, 11 | mpbid 145 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 ax-sep 3898 ax-pow 3950 ax-pr 3966 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1687 df-eu 1945 df-mo 1946 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-ral 2354 df-rex 2355 df-v 2604 df-un 2978 df-in 2980 df-ss 2987 df-pw 3386 df-sn 3406 df-pr 3407 df-op 3409 df-br 3788 df-opab 3842 df-id 4050 df-xp 4371 df-rel 4372 df-cnv 4373 df-co 4374 df-dm 4375 df-rn 4376 df-res 4377 df-ima 4378 df-fun 4928 df-fn 4929 df-f 4930 df-f1 4931 df-fo 4932 df-f1o 4933 |
This theorem is referenced by: f1oresrab 5355 |
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