Description: Lemma 1 for funcsetcestrc . (Contributed by AV, 27-Mar-2020)
Ref | Expression | ||
---|---|---|---|
Hypotheses | funcsetcestrc.s | |
|
funcsetcestrc.c | |
||
funcsetcestrc.f | |
||
Assertion | funcsetcestrclem1 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funcsetcestrc.s | |
|
2 | funcsetcestrc.c | |
|
3 | funcsetcestrc.f | |
|
4 | 3 | adantr | |
5 | opeq2 | |
|
6 | 5 | sneqd | |
7 | 6 | adantl | |
8 | simpr | |
|
9 | snex | |
|
10 | 9 | a1i | |
11 | 4 7 8 10 | fvmptd | |