At: lang auto compute 1 1 2 1 1 1
1. Alph: Type
2. L: LangOver(Alph)
3. EquivRel x,y:Alph*. x L-induced Equiv y
4. L 
Alph*
Prop
5. g: (x,y:Alph*//(x L-induced Equiv y))
6. l: Alph*
nil = nil x,y:Alph*//(x L-induced Equiv y)
By: Analyze
Generated subgoal:| 1 | nil L-induced Equiv nil |
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