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Mirrors > Home > ILE Home > Th. List > ffn | Unicode version |
Description: A mapping is a function. (Contributed by NM, 2-Aug-1994.) |
Ref | Expression |
---|---|
ffn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f 4926 | . 2 | |
2 | 1 | simplbi 268 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wss 2973 crn 4364 wfn 4917 wf 4918 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 |
This theorem depends on definitions: df-bi 115 df-f 4926 |
This theorem is referenced by: ffun 5068 frel 5069 fdm 5070 fresin 5088 fcoi1 5090 feu 5092 fnconstg 5104 f1fn 5113 fofn 5128 dffo2 5130 f1ofn 5147 feqmptd 5247 fvco3 5265 ffvelrn 5321 dff2 5332 dffo3 5335 dffo4 5336 dffo5 5337 f1ompt 5341 ffnfv 5344 fcompt 5354 fsn2 5358 fconst2g 5397 fconstfvm 5400 fex 5409 dff13 5428 cocan1 5447 off 5744 suppssof1 5748 ofco 5749 caofref 5752 caofrss 5755 caoftrn 5756 fo1stresm 5808 fo2ndresm 5809 1stcof 5810 2ndcof 5811 fo2ndf 5868 tposf2 5906 smoiso 5940 dfz2 8420 uzn0 8634 unirnioo 8996 dfioo2 8997 ioorebasg 8998 fzen 9062 fseq1p1m1 9111 2ffzeq 9151 fvinim0ffz 9250 iser0f 9472 shftf 9718 uzin2 9873 rexanuz 9874 eucialg 10441 |
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