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| Mirrors > Home > ILE Home > Th. List > foelrn | Unicode version | ||
| Description: Property of a surjective function. (Contributed by Jeff Madsen, 4-Jan-2011.) (Proof shortened by BJ, 6-Jul-2022.) |
| Ref | Expression |
|---|---|
| foelrn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | foima2 5950 |
. 2
| |
| 2 | 1 | biimpa 296 |
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-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-fo 5381 df-fv 5383 |
| This theorem is referenced by: foco2 5952 ctmlemr 7441 ctm 7442 ctssdclemn0 7443 ctssdccl 7444 ctssdc 7446 enumctlemm 7447 fodju0 7480 exmidfodomrlemr 7547 exmidfodomrlemrALT 7548 ennnfonelemrn 13291 ctinf 13302 ctiunctlemfo 13311 znidom 14967 znrrg 14970 subctctexmid 16947 pw1nct 16950 |
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