Level:
Lib
Thy
Top
:
Hypotheses:
None
Conclusion:
Alph:
.
L:L(Alph). (L
L) = L
Applied Tactic:
Unfold `languages` 0 THEN Unfold `lang_eq` 0 THEN Unfold `lang_inters` 0 THEN UnivCD THENW Auto THEN Reduce 0 THEN ProveProp THEN Auto
Generated subgoals:
None