Description: Express the predicate on U in ismnu using only primitives. (Contributed by Rohan Ridenour, 13-Aug-2023)
Ref | Expression | ||
---|---|---|---|
Assertion | ismnuprim | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.28v | |
|
2 | r19.42v | |
|
3 | 19.26 | |
|
4 | 19.26 | |
|
5 | jcab | |
|
6 | 5 | albii | |
7 | pwss | |
|
8 | pwss | |
|
9 | 7 8 | anbi12i | |
10 | 4 6 9 | 3bitr4i | |
11 | ralcom4 | |
|
12 | 19.23v | |
|
13 | 3anass | |
|
14 | 13 | exbii | |
15 | df-rex | |
|
16 | 14 15 | bitr4i | |
17 | 16 | imbi1i | |
18 | 12 17 | bitri | |
19 | 18 | ralbii | |
20 | 11 19 | bitr3i | |
21 | 10 20 | anbi12i | |
22 | anass | |
|
23 | 21 22 | bitri | |
24 | 3 23 | bitri | |
25 | dfss2 | |
|
26 | df-an | |
|
27 | 25 26 | imbi12i | |
28 | 3impexp | |
|
29 | biid | |
|
30 | expanduniss | |
|
31 | 29 30 | expandan | |
32 | 31 | expandrexn | |
33 | 32 | imbi2i | |
34 | 33 | imbi2i | |
35 | 34 | imbi2i | |
36 | 28 35 | bitri | |
37 | 36 | expandral | |
38 | 27 37 | expandan | |
39 | 38 | albii | |
40 | 24 39 | bitr3i | |
41 | 40 | expandrex | |
42 | 2 41 | bitr3i | |
43 | 42 | albii | |
44 | 1 43 | bitr3i | |
45 | 44 | expandral | |