Description: Lemma for rpnnen2 . (Contributed by Mario Carneiro, 13-May-2013) (Revised by Mario Carneiro, 30-Apr-2014)
Ref | Expression | ||
---|---|---|---|
Hypothesis | rpnnen2.1 | |
|
Assertion | rpnnen2lem7 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpnnen2.1 | |
|
2 | eqid | |
|
3 | simp3 | |
|
4 | 3 | nnzd | |
5 | eqidd | |
|
6 | eluznn | |
|
7 | 3 6 | sylan | |
8 | sstr | |
|
9 | 8 | 3adant3 | |
10 | 1 | rpnnen2lem2 | |
11 | 9 10 | syl | |
12 | 11 | ffvelcdmda | |
13 | 7 12 | syldan | |
14 | eqidd | |
|
15 | 1 | rpnnen2lem2 | |
16 | 15 | 3ad2ant2 | |
17 | 16 | ffvelcdmda | |
18 | 7 17 | syldan | |
19 | 1 | rpnnen2lem4 | |
20 | 19 | simprd | |
21 | 20 | 3expa | |
22 | 21 | 3adantl3 | |
23 | 7 22 | syldan | |
24 | 1 | rpnnen2lem5 | |
25 | 8 24 | stoic3 | |
26 | 1 | rpnnen2lem5 | |
27 | 26 | 3adant1 | |
28 | 2 4 5 13 14 18 23 25 27 | isumle | |