Step |
Hyp |
Ref |
Expression |
1 |
|
zrhpsgnelbas.p |
|
2 |
|
zrhpsgnelbas.s |
|
3 |
|
zrhpsgnelbas.y |
|
4 |
1 2
|
psgnran |
|
5 |
4
|
3adant1 |
|
6 |
|
elpri |
|
7 |
|
eqid |
|
8 |
3 7
|
zrh1 |
|
9 |
|
eqid |
|
10 |
9 7
|
ringidcl |
|
11 |
8 10
|
eqeltrd |
|
12 |
11
|
3ad2ant1 |
|
13 |
|
fveq2 |
|
14 |
13
|
eleq1d |
|
15 |
12 14
|
syl5ibr |
|
16 |
|
neg1z |
|
17 |
|
eqid |
|
18 |
3 17 7
|
zrhmulg |
|
19 |
16 18
|
mpan2 |
|
20 |
|
ringgrp |
|
21 |
16
|
a1i |
|
22 |
9 17 20 21 10
|
mulgcld |
|
23 |
19 22
|
eqeltrd |
|
24 |
23
|
3ad2ant1 |
|
25 |
|
fveq2 |
|
26 |
25
|
eleq1d |
|
27 |
24 26
|
syl5ibr |
|
28 |
15 27
|
jaoi |
|
29 |
6 28
|
syl |
|
30 |
5 29
|
mpcom |
|