Step |
Hyp |
Ref |
Expression |
1 |
|
fcomptf.1 |
|
2 |
|
nfcv |
|
3 |
|
nfcv |
|
4 |
|
nfcv |
|
5 |
2 3 4
|
nff |
|
6 |
|
nfcv |
|
7 |
1 6 3
|
nff |
|
8 |
5 7
|
nfan |
|
9 |
|
ffvelrn |
|
10 |
9
|
adantll |
|
11 |
10
|
ex |
|
12 |
8 11
|
ralrimi |
|
13 |
|
ffn |
|
14 |
13
|
adantl |
|
15 |
1
|
dffn5f |
|
16 |
14 15
|
sylib |
|
17 |
|
ffn |
|
18 |
17
|
adantr |
|
19 |
|
dffn5 |
|
20 |
18 19
|
sylib |
|
21 |
|
fveq2 |
|
22 |
12 16 20 21
|
fmptcof |
|