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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 3281 |
. . 3
| |
| 2 | 1 | anim2i 342 |
. 2
|
| 3 | df-fo 5332 |
. 2
| |
| 4 | df-f 5330 |
. 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 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-11 1554 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-in 3206 df-ss 3213 df-f 5330 df-fo 5332 |
| This theorem is referenced by: fofun 5560 fofn 5561 dffo2 5563 foima 5564 resdif 5605 ffoss 5616 fconstfvm 5871 cocan2 5928 foeqcnvco 5930 focdmex 6276 algrflem 6393 algrflemg 6394 tposf2 6433 mapsn 6858 ssdomg 6951 fopwdom 7021 fidcenumlemrks 7151 fidcenumlemr 7153 ctmlemr 7306 ctm 7307 ctssdclemn0 7308 ctssdccl 7309 ctssdc 7311 enumctlemm 7312 enumct 7313 fodjuomnilemdc 7342 exmidfodomrlemr 7412 exmidfodomrlemrALT 7413 suplocexprlemdisj 7939 suplocexprlemub 7942 wrdsymb 11140 ennnfonelemdc 13019 ennnfonelemg 13023 ennnfonelemp1 13026 ennnfonelemhdmp1 13029 ennnfonelemkh 13032 ennnfonelemhf1o 13033 ennnfonelemex 13034 ennnfonelemhom 13035 ctinfomlemom 13047 ctinf 13050 ctiunctlemudc 13057 ctiunctlemf 13058 omctfn 13063 imasival 13388 imasbas 13389 imasplusg 13390 imasmulr 13391 imasaddfnlemg 13396 imasaddvallemg 13397 imasaddflemg 13398 imasmnd2 13534 imasgrp2 13696 mhmid 13701 mhmmnd 13702 mhmfmhm 13703 ghmgrp 13704 ghmfghm 13912 imasring 14076 znunit 14672 znrrg 14673 dvrecap 15436 gausslemma2dlem1f1o 15788 subctctexmid 16601 pw1nct 16604 |
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