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At: not disjoint is member lemma 1 1 1 1 1 2
1. T: Type
2. eq: {T=}
3. eq TT
4. x,y:T. eq(x,y) x = y
5. L: T List
6. M: T List
7. u: T
8. v: T List
9. True (x:T. False & x(eq) v)

True (x:T. False & x(eq) (u.v))
By:
OnHyps [-1;0] Reduce
THEN
Analyze 0
Generated subgoal:

110. True
x:T. False & if eq(x,u) true else x(eq) v fi

About:
listconsboolbtrueifthenelseassertapplyfunctionuniverse
equalmemberimpliesandfalsetrueallexists

(33steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc