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| Mirrors > Home > ILE Home > Th. List > fof | Unicode version | ||
| Description: An onto mapping is a mapping. (Contributed by NM, 3-Aug-1994.) |
| Ref | Expression |
|---|---|
| fof |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqimss 3282 |
. . 3
| |
| 2 | 1 | anim2i 342 |
. 2
|
| 3 | df-fo 5339 |
. 2
| |
| 4 | df-f 5337 |
. 2
| |
| 5 | 2, 3, 4 | 3imtr4i 201 |
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-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-in 3207 df-ss 3214 df-f 5337 df-fo 5339 |
| This theorem is referenced by: fofun 5569 fofn 5570 dffo2 5572 foima 5573 resdif 5614 ffoss 5625 fconstfvm 5880 cocan2 5939 foeqcnvco 5941 focdmex 6286 algrflem 6403 algrflemg 6404 tposf2 6477 mapsn 6902 ssdomg 6995 fopwdom 7065 fidcenumlemrks 7195 fidcenumlemr 7197 ctmlemr 7350 ctm 7351 ctssdclemn0 7352 ctssdccl 7353 ctssdc 7355 enumctlemm 7356 enumct 7357 fodjuomnilemdc 7386 exmidfodomrlemr 7456 exmidfodomrlemrALT 7457 suplocexprlemdisj 7983 suplocexprlemub 7986 wrdsymb 11190 ennnfonelemdc 13083 ennnfonelemg 13087 ennnfonelemp1 13090 ennnfonelemhdmp1 13093 ennnfonelemkh 13096 ennnfonelemhf1o 13097 ennnfonelemex 13098 ennnfonelemhom 13099 ctinfomlemom 13111 ctinf 13114 ctiunctlemudc 13121 ctiunctlemf 13122 omctfn 13127 imasival 13452 imasbas 13453 imasplusg 13454 imasmulr 13455 imasaddfnlemg 13460 imasaddvallemg 13461 imasaddflemg 13462 imasmnd2 13598 imasgrp2 13760 mhmid 13765 mhmmnd 13766 mhmfmhm 13767 ghmgrp 13768 ghmfghm 13976 imasring 14141 znunit 14738 znrrg 14739 dvrecap 15507 gausslemma2dlem1f1o 15862 subctctexmid 16705 pw1nct 16708 |
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