Description: Continuity of the group sum; analogue of cnmpt22f which cannot be used directly because +g is not a function. (Contributed by Mario Carneiro, 23-Aug-2015)
Ref | Expression | ||
---|---|---|---|
Hypotheses | tgpcn.j | |
|
cnmpt1plusg.p | |
||
cnmpt1plusg.g | |
||
cnmpt1plusg.k | |
||
cnmpt2plusg.l | |
||
cnmpt2plusg.a | |
||
cnmpt2plusg.b | |
||
Assertion | cnmpt2plusg | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tgpcn.j | |
|
2 | cnmpt1plusg.p | |
|
3 | cnmpt1plusg.g | |
|
4 | cnmpt1plusg.k | |
|
5 | cnmpt2plusg.l | |
|
6 | cnmpt2plusg.a | |
|
7 | cnmpt2plusg.b | |
|
8 | txtopon | |
|
9 | 4 5 8 | syl2anc | |
10 | eqid | |
|
11 | 1 10 | tmdtopon | |
12 | 3 11 | syl | |
13 | cnf2 | |
|
14 | 9 12 6 13 | syl3anc | |
15 | eqid | |
|
16 | 15 | fmpo | |
17 | 14 16 | sylibr | |
18 | 17 | r19.21bi | |
19 | 18 | r19.21bi | |
20 | 19 | 3impa | |
21 | cnf2 | |
|
22 | 9 12 7 21 | syl3anc | |
23 | eqid | |
|
24 | 23 | fmpo | |
25 | 22 24 | sylibr | |
26 | 25 | r19.21bi | |
27 | 26 | r19.21bi | |
28 | 27 | 3impa | |
29 | eqid | |
|
30 | 10 2 29 | plusfval | |
31 | 20 28 30 | syl2anc | |
32 | 31 | mpoeq3dva | |
33 | 1 29 | tmdcn | |
34 | 3 33 | syl | |
35 | 4 5 6 7 34 | cnmpt22f | |
36 | 32 35 | eqeltrrd | |