Description: Obsolete proof of psrgrp as of 7-Feb-2025. (Contributed by Mario Carneiro, 29-Dec-2014) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | psrgrp.s | |
|
psrgrp.i | |
||
psrgrp.r | |
||
Assertion | psrgrpOLD | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | psrgrp.s | |
|
2 | psrgrp.i | |
|
3 | psrgrp.r | |
|
4 | eqidd | |
|
5 | eqidd | |
|
6 | eqid | |
|
7 | eqid | |
|
8 | 3 | 3ad2ant1 | |
9 | simp2 | |
|
10 | simp3 | |
|
11 | 1 6 7 8 9 10 | psraddcl | |
12 | ovex | |
|
13 | 12 | rabex | |
14 | 13 | a1i | |
15 | eqid | |
|
16 | eqid | |
|
17 | simpr1 | |
|
18 | 1 15 16 6 17 | psrelbas | |
19 | simpr2 | |
|
20 | 1 15 16 6 19 | psrelbas | |
21 | simpr3 | |
|
22 | 1 15 16 6 21 | psrelbas | |
23 | 3 | adantr | |
24 | eqid | |
|
25 | 15 24 | grpass | |
26 | 23 25 | sylan | |
27 | 14 18 20 22 26 | caofass | |
28 | 1 6 24 7 17 19 | psradd | |
29 | 28 | oveq1d | |
30 | 1 6 24 7 19 21 | psradd | |
31 | 30 | oveq2d | |
32 | 27 29 31 | 3eqtr4d | |
33 | 11 | 3adant3r3 | |
34 | 1 6 24 7 33 21 | psradd | |
35 | 1 6 7 23 19 21 | psraddcl | |
36 | 1 6 24 7 17 35 | psradd | |
37 | 32 34 36 | 3eqtr4d | |
38 | eqid | |
|
39 | 1 2 3 16 38 6 | psr0cl | |
40 | 2 | adantr | |
41 | 3 | adantr | |
42 | simpr | |
|
43 | 1 40 41 16 38 6 7 42 | psr0lid | |
44 | eqid | |
|
45 | 1 40 41 16 44 6 42 | psrnegcl | |
46 | 1 40 41 16 44 6 42 38 7 | psrlinv | |
47 | 4 5 11 37 39 43 45 46 | isgrpd | |