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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-funs | Structured version Visualization version Unicode version |
Description: Define the class of all functions. See elfuns 32022 for membership. (Contributed by Scott Fenton, 18-Feb-2013.) |
Ref | Expression |
---|---|
df-funs |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cfuns 31944 | . 2 | |
2 | cvv 3200 | . . . . 5 | |
3 | 2, 2 | cxp 5112 | . . . 4 |
4 | 3 | cpw 4158 | . . 3 |
5 | cep 5028 | . . . . 5 | |
6 | c1st 7166 | . . . . . . 7 | |
7 | cid 5023 | . . . . . . . . 9 | |
8 | 2, 7 | cdif 3571 | . . . . . . . 8 |
9 | c2nd 7167 | . . . . . . . 8 | |
10 | 8, 9 | ccom 5118 | . . . . . . 7 |
11 | 6, 10 | ctxp 31937 | . . . . . 6 |
12 | 5 | ccnv 5113 | . . . . . 6 |
13 | 11, 12 | ccom 5118 | . . . . 5 |
14 | 5, 13 | ccom 5118 | . . . 4 |
15 | 14 | cfix 31942 | . . 3 |
16 | 4, 15 | cdif 3571 | . 2 |
17 | 1, 16 | wceq 1483 | 1 |
Colors of variables: wff setvar class |
This definition is referenced by: elfuns 32022 |
Copyright terms: Public domain | W3C validator |