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| Description: A mapping is a function. |
| Ref | Expression |
|---|---|
| ffn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-f 3184 |
. 2
| |
| 2 | 1 | pm3.26bi 322 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fnf 3614 ffun 3615 frel 3616 fdm 3617 fss 3620 fcoi1 3630 feu 3632 fex 3637 dffo2 3660 fodmrnu 3665 f1ofn 3675 f1o5 3682 f1f1orn 3684 fo00 3700 fvco3 3761 ffvelrn 3799 dff4 3801 dffo3 3804 dffo4 3805 dffo5 3806 ffnfv 3813 fsn2 3821 fopabsn 3825 fconst2g 3830 fconstfv 3834 f1fv 3859 canth 3892 2ndconst 4081 curry1f 4083 1stcof 4085 df1st2 4110 df2nd2 4111 mapval2 4319 mapsn 4329 pw2en 4426 mapenlem2 4470 xpmapenlem3 4478 mapunen 4482 fodomfi 4540 ac6s2 4730 carduniima 4862 cardinfima 4863 unirnioo 6335 dfioo2 6336 fsequb2 6456 fseqsupub 6458 seq1ublem 6848 seq1ub 6849 climsup 7091 cvgcmpub 7121 cncffvrn 7208 eff2 7312 ruclem33 7485 ruclem35 7487 ruclem37 7489 infmap2lem2 7522 retopbas 7597 iooretop 7601 dnsconst 7727 blssioo 7852 tgioo 7854 lmsslem 7887 xplm 7909 bcthlem33 7965 grprn 7990 resgrprnOLD 8031 subgres 8054 issubgi 8059 vcoprnelem 8135 0vfval 8163 invfval 8201 cnnvm 8251 ip1cnilem2 8308 sspg 8321 ssps 8323 sspmlem 8325 sspn 8329 nvo00 8356 nmlno0lem 8385 phoeqi 8449 sinco 8586 cosco 8587 efghgrpilem 8634 circgrpOLD 8658 hilnorm 8951 hhip 8965 hhssabl 9053 hhssnv 9054 hhsssh 9059 pjfnt 9571 df0op2 9595 hoeqt 9603 hocofn 9610 hoaddfn 9613 hosubfn 9614 hon0 9636 ho01 9671 hoeq1t 9673 kbpjt 9796 nmlnop0ALT 9835 lnopco0 9844 lnopcon 9878 lnfncon 9905 cnvbravalt 9956 hmopidmpj 9991 ghomgrpilem2 10291 ghomfo 10296 cayleylem2 10317 cayleylem3 10318 |
| 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 3184 |