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| Mirrors > Home > ILE Home > Th. List > f1ofo | Unicode version | ||
| Description: A one-to-one onto function is an onto function. (Contributed by NM, 28-Apr-2004.) |
| Ref | Expression |
|---|---|
| f1ofo |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dff1o3 5648 |
. 2
| |
| 2 | 1 | simplbi 274 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 |
| This theorem is used by: f1imacnv 5659 f1ococnv2 5669 fo00 5680 isoini 6027 isoselem 6029 f1opw2 6299 f1dmex 6349 bren 7034 f1oeng 7047 en1 7090 mapen 7150 ssenen 7156 phplem4 7160 phplem4on 7173 dif1en 7187 fiintim 7242 fidcenumlemim 7274 supisolem 7354 ordiso2 7381 djuunr 7412 omct 7463 ctssexmid 7496 1fv 10563 hashfacen 11306 fsumf1o 12182 fisumss 12184 fprodf1o 12380 fprodssdc 12382 nninfct 12843 ballotfilemro 13324 ennnfonelemrn 13368 ennnfonelemnn0 13371 ennnfonelemim 13373 exmidunben 13375 ctinfomlemom 13376 ctinfom 13377 qnnen 13380 enctlem 13381 ssomct 13394 xpsfrn 13730 imasmndf1 13820 imasgrpf1 13974 imasrngf1 14363 imasringf1 14479 znleval 15097 hmeontr 15539 hmeoimaf1o 15540 fsumdvdsmul 16285 eupthvdres 16921 subctctexmid 17235 domomsubct 17236 exmidsbthrlem 17273 sbthomlem 17276 |
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