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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 3296 |
. . 3
| |
| 2 | 1 | anim2i 342 |
. 2
|
| 3 | df-fo 5363 |
. 2
| |
| 4 | df-f 5361 |
. 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 2216 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-in 3220 df-ss 3227 df-f 5361 df-fo 5363 |
| This theorem is referenced by: fofun 5596 fofn 5597 dffo2 5599 foima 5600 resdif 5641 ffoss 5652 fconstfvm 5907 cocan2 5967 foeqcnvco 5969 focdmex 6317 algrflem 6438 algrflemg 6439 tposf2 6512 mapsn 6938 ssdomg 7031 fopwdom 7102 fidcenumlemrks 7236 fidcenumlemr 7238 ctmlemr 7412 ctm 7413 ctssdclemn0 7414 ctssdccl 7415 ctssdc 7417 enumctlemm 7418 enumct 7419 fodjuomnilemdc 7448 exmidfodomrlemr 7518 exmidfodomrlemrALT 7519 suplocexprlemdisj 8051 suplocexprlemub 8054 wrdsymb 11277 ennnfonelemdc 13234 ennnfonelemg 13238 ennnfonelemp1 13241 ennnfonelemhdmp1 13244 ennnfonelemkh 13247 ennnfonelemhf1o 13248 ennnfonelemex 13249 ennnfonelemhom 13250 ctinfomlemom 13262 ctinf 13265 ctiunctlemudc 13272 ctiunctlemf 13273 omctfn 13278 imasival 13570 imasbas 13571 imasplusg 13572 imasmulr 13573 imasaddfnlemg 13578 imasaddvallemg 13579 imasaddflemg 13580 imasmnd2 13707 imasgrp2 13863 mhmid 13868 mhmmnd 13869 mhmfmhm 13870 ghmgrp 13871 ghmfghm 14079 imasring 14307 znunit 14933 znrrg 14934 dvrecap 15704 gausslemma2dlem1f1o 16059 subctctexmid 16900 pw1nct 16903 |
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