(22steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc

At: list exists is member append lemma 1 2 1
1. T: Type
2. P: TProp
3. L: T List
4. M: T List
5. N: T List
6. x: T
7. P(x)
8. L = (M @ (x.N))

xL.P(x)
By: HypSubst -1 0
Generated subgoal:

1 x(M @ (x.N)).P(x)

About:
listconsfunctionuniverseequalprop

(22steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc