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| Description: A mapping is a function. |
| Ref | Expression |
|---|---|
| ffn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-f 3200 |
. 2
| |
| 2 | 1 | pm3.26bi 322 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fnf 3634 ffun 3635 frel 3636 fdm 3637 fss 3641 fcoi1 3651 feu 3653 fex 3658 dffo2 3681 fodmrnu 3686 f1ofn 3696 f1o5 3703 f1f1orn 3705 fo00 3721 fvco3 3782 ffvelrn 3820 dff4 3822 dffo3 3825 dffo4 3826 dffo5 3827 ffnfv 3834 fsn2 3842 fopabsn 3846 fconst2g 3851 fconstfv 3855 f1fv 3880 canth 3913 2ndconst 4103 curry1f 4105 1stcof 4107 df1st2 4132 df2nd2 4133 mapval2 4341 mapsn 4351 pw2en 4452 mapenlem2 4496 xpmapenlem3 4504 mapunen 4508 fodomfi 4575 fodomfiOLD 4576 ac6s2 4768 carduniima 4901 cardinfima 4902 unirnioo 6403 dfioo2 6404 fsequb2 6525 fseqsupub 6527 seq1ublem 6911 seq1ub 6912 climsup 7155 cvgcmpub 7185 cncffvrn 7273 eff2 7370 ruclem33 7543 ruclem35 7545 ruclem37 7547 infmap2lem2 7582 retopbas 7652 iooretop 7656 dnsconst 7785 blssioo 7910 tgioo 7912 lmsslem 7949 xplm 7972 bcthlem33 8028 grprn 8053 subgres 8113 issubgi 8118 vcoprnelem 8193 0vfval 8221 invfval 8257 cnnvm 8309 ip1cnilem2 8370 sspg 8383 ssps 8385 sspmlem 8387 sspn 8391 nvo00 8420 nmlno0lem 8449 lnon0 8454 phoeqi 8514 sinco 8662 cosco 8663 efghgrpilem 8714 hilnorm 9025 hhip 9039 hhssabl 9127 hhssnv 9129 hhsssh 9134 pjfnt 9649 df0op2 9673 hoeqt 9681 hocofn 9688 hoaddfn 9691 hosubfn 9692 hon0 9714 ho01 9749 hoeq1t 9751 kbpjt 9875 nmlnop0ALT 9915 lnopco0 9924 lnopcon 9958 lnfncon 9985 cnvbravalt 10038 hmopidmpj 10075 ghomgrpilem2 10381 ghomfo 10386 cayleylem2 10405 cayleylem3 10406 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-f 3200 |