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At: is member append disjunction lemma 1 1 1
1. T: Type
2. eq: {T}
3. x: T
4. L: T List
5. M: T List

x(eq) M False x(eq) M
By: Auto
Generated subgoal:

16. x(eq) M
False x(eq) M

About:
listassertuniverseimpliesorfalse

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