Description: Lemma for strong set of CH states theorem. (Contributed by NM, 30-Jun-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypothesis | hstrlem2.1 | ||
Assertion | hstrlem2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hstrlem2.1 | ||
2 | fveq2 | ||
3 | 2 | fveq1d | |
4 | fvex | ||
5 | 3 1 4 | fvmpt |