Level: Lib Thy Top:
Hypotheses:None
Conclusion:
Alph:
. L,L':L(Alph). L = L' 
(
L) = (L')
Applied Tactic: Unfold `languages` 0 THEN
Unfold `lang_compl` 0 THEN
Unfold `lang_eq` 0 THEN
UnivCD THENW Auto
THEN Reduce 0
Generated subgoals:1. 
(L l) 
(L' l)