Description: The composition of two curried functions is jointly continuous. (Contributed by Mario Carneiro, 23-Mar-2015) (Revised by Mario Carneiro, 22-Aug-2015)
Ref | Expression | ||
---|---|---|---|
Hypotheses | cnmptkk.j | |
|
cnmptkk.k | |
||
cnmptkk.l | |
||
cnmptkk.m | |
||
cnmptkk.n | |
||
cnmptkk.a | |
||
cnmptkk.b | |
||
cnmptkk.c | |
||
Assertion | cnmptkk | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnmptkk.j | |
|
2 | cnmptkk.k | |
|
3 | cnmptkk.l | |
|
4 | cnmptkk.m | |
|
5 | cnmptkk.n | |
|
6 | cnmptkk.a | |
|
7 | cnmptkk.b | |
|
8 | cnmptkk.c | |
|
9 | 2 | adantr | |
10 | 3 | adantr | |
11 | topontop | |
|
12 | 2 11 | syl | |
13 | nllytop | |
|
14 | 5 13 | syl | |
15 | eqid | |
|
16 | 15 | xkotopon | |
17 | 12 14 16 | syl2anc | |
18 | cnf2 | |
|
19 | 1 17 6 18 | syl3anc | |
20 | 19 | fvmptelcdm | |
21 | cnf2 | |
|
22 | 9 10 20 21 | syl3anc | |
23 | eqid | |
|
24 | 23 | fmpt | |
25 | 22 24 | sylibr | |
26 | eqidd | |
|
27 | eqidd | |
|
28 | 25 26 27 8 | fmptcof | |
29 | 28 | mpteq2dva | |
30 | topontop | |
|
31 | 4 30 | syl | |
32 | eqid | |
|
33 | 32 | xkotopon | |
34 | 14 31 33 | syl2anc | |
35 | eqid | |
|
36 | 35 | xkococn | |
37 | 12 5 31 36 | syl3anc | |
38 | coeq1 | |
|
39 | coeq2 | |
|
40 | 38 39 | sylan9eq | |
41 | 1 7 6 34 17 37 40 | cnmpt12 | |
42 | 29 41 | eqeltrrd | |