Description: Lemma for zntos . (Contributed by Mario Carneiro, 15-Jun-2015) (Revised by AV, 13-Jun-2019)
Ref | Expression | ||
---|---|---|---|
Hypotheses | znle2.y | |
|
znle2.f | |
||
znle2.w | |
||
znle2.l | |
||
znleval.x | |
||
Assertion | zntoslem | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | znle2.y | |
|
2 | znle2.f | |
|
3 | znle2.w | |
|
4 | znle2.l | |
|
5 | znleval.x | |
|
6 | 1 | fvexi | |
7 | 6 | a1i | |
8 | 5 | a1i | |
9 | 4 | a1i | |
10 | 1 5 2 3 | znf1o | |
11 | f1ocnv | |
|
12 | 10 11 | syl | |
13 | f1of | |
|
14 | 12 13 | syl | |
15 | sseq1 | |
|
16 | sseq1 | |
|
17 | ssid | |
|
18 | fzossz | |
|
19 | 15 16 17 18 | keephyp | |
20 | 3 19 | eqsstri | |
21 | zssre | |
|
22 | 20 21 | sstri | |
23 | fss | |
|
24 | 14 22 23 | sylancl | |
25 | 24 | ffvelcdmda | |
26 | 25 | leidd | |
27 | 1 2 3 4 5 | znleval2 | |
28 | 27 | 3anidm23 | |
29 | 26 28 | mpbird | |
30 | 1 2 3 4 5 | znleval2 | |
31 | 1 2 3 4 5 | znleval2 | |
32 | 31 | 3com23 | |
33 | 30 32 | anbi12d | |
34 | 25 | 3adant3 | |
35 | 24 | ffvelcdmda | |
36 | 35 | 3adant2 | |
37 | 34 36 | letri3d | |
38 | f1of1 | |
|
39 | 12 38 | syl | |
40 | f1fveq | |
|
41 | 39 40 | sylan | |
42 | 41 | 3impb | |
43 | 33 37 42 | 3bitr2d | |
44 | 43 | biimpd | |
45 | 25 | 3ad2antr1 | |
46 | 35 | 3ad2antr2 | |
47 | 24 | ffvelcdmda | |
48 | 47 | 3ad2antr3 | |
49 | letr | |
|
50 | 45 46 48 49 | syl3anc | |
51 | 30 | 3adant3r3 | |
52 | 1 2 3 4 5 | znleval2 | |
53 | 52 | 3adant3r1 | |
54 | 51 53 | anbi12d | |
55 | 1 2 3 4 5 | znleval2 | |
56 | 55 | 3adant3r2 | |
57 | 50 54 56 | 3imtr4d | |
58 | 7 8 9 29 44 57 | isposd | |
59 | 34 36 | letrid | |
60 | 30 32 | orbi12d | |
61 | 59 60 | mpbird | |
62 | 61 | 3expb | |
63 | 62 | ralrimivva | |
64 | 5 4 | istos | |
65 | 58 63 64 | sylanbrc | |