Description: The power function on complex numbers, for fixed exponent A, is continuous. Similar to cxpcn . (Contributed by Thierry Arnoux, 20-Dec-2021)
Ref | Expression | ||
---|---|---|---|
Hypotheses | cxpcncf1.a | |
|
cxpcncf1.d | |
||
Assertion | cxpcncf1 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cxpcncf1.a | |
|
2 | cxpcncf1.d | |
|
3 | resmpt | |
|
4 | 2 3 | syl | |
5 | eqid | |
|
6 | 5 | cnfldtopon | |
7 | difss | |
|
8 | resttopon | |
|
9 | 6 7 8 | mp2an | |
10 | 9 | a1i | |
11 | 10 | cnmptid | |
12 | 6 | a1i | |
13 | 10 12 1 | cnmptc | |
14 | eqid | |
|
15 | eqid | |
|
16 | 14 5 15 | cxpcn | |
17 | 16 | a1i | |
18 | oveq12 | |
|
19 | 10 11 13 10 12 17 18 | cnmpt12 | |
20 | ssid | |
|
21 | 6 | toponrestid | |
22 | 5 15 21 | cncfcn | |
23 | 7 20 22 | mp2an | |
24 | 23 | eqcomi | |
25 | 24 | a1i | |
26 | 19 25 | eleqtrd | |
27 | rescncf | |
|
28 | 27 | imp | |
29 | 2 26 28 | syl2anc | |
30 | 4 29 | eqeltrrd | |