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At: not disjoint is member lemma 1 1 1 1
1. T: Type
2. eq: {T=}
3. eq TT
4. x,y:T. eq(x,y) x = y
5. L: T List

M:T List. disjoint(eq;nil;M) (x:T. x(eq) nil & x(eq) M)
By:
Reduce 0
THEN
Analyze 0
Generated subgoal:

16. M: T List
True (x:T. False & x(eq) M)

About:
listnilboolassertapplyfunctionuniverseequalmember
impliesandfalsetrueallexists

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