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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 3292 |
. . 3
| |
| 2 | 1 | anim2i 342 |
. 2
|
| 3 | df-fo 5358 |
. 2
| |
| 4 | df-f 5356 |
. 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 2214 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-in 3217 df-ss 3224 df-f 5356 df-fo 5358 |
| This theorem is referenced by: fofun 5591 fofn 5592 dffo2 5594 foima 5595 resdif 5636 ffoss 5647 fconstfvm 5902 cocan2 5961 foeqcnvco 5963 focdmex 6308 algrflem 6425 algrflemg 6426 tposf2 6499 mapsn 6925 ssdomg 7018 fopwdom 7089 fidcenumlemrks 7223 fidcenumlemr 7225 ctmlemr 7399 ctm 7400 ctssdclemn0 7401 ctssdccl 7402 ctssdc 7404 enumctlemm 7405 enumct 7406 fodjuomnilemdc 7435 exmidfodomrlemr 7505 exmidfodomrlemrALT 7506 suplocexprlemdisj 8035 suplocexprlemub 8038 wrdsymb 11252 ennnfonelemdc 13150 ennnfonelemg 13154 ennnfonelemp1 13157 ennnfonelemhdmp1 13160 ennnfonelemkh 13163 ennnfonelemhf1o 13164 ennnfonelemex 13165 ennnfonelemhom 13166 ctinfomlemom 13178 ctinf 13181 ctiunctlemudc 13188 ctiunctlemf 13189 omctfn 13194 imasival 13519 imasbas 13520 imasplusg 13521 imasmulr 13522 imasaddfnlemg 13527 imasaddvallemg 13528 imasaddflemg 13529 imasmnd2 13665 imasgrp2 13827 mhmid 13832 mhmmnd 13833 mhmfmhm 13834 ghmgrp 13835 ghmfghm 14043 imasring 14208 znunit 14807 znrrg 14808 dvrecap 15578 gausslemma2dlem1f1o 15933 subctctexmid 16774 pw1nct 16777 |
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