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At: lang eq weakening

Alph:Type, L,M:LangOver(Alph). L = M L = M
By: UnivCD
Generated subgoal:

11. Alph: Type
2. L: LangOver(Alph)
3. M: LangOver(Alph)
4. L = M
L = M

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alluniverseimpliesequal