At: mn 31 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1. Alph: Type
2. L: Alph*
Prop
3. EquivRel x,y:Alph*. x L-induced Equiv y
4. Fin(Alph)
5. Fin(x,y:Alph*//L-induced Equiv(x,y))
6.
l:Alph*. Dec(L(l))
7. g: Alph*


8.
t:Alph*. L(t) 
g(t)
9. a: Alph
10. s1: Alph*
11. s2: Alph*
12.
z:Alph*. L(z @ s1) 
L(z @ s2)
13. z: Alph*
14. L(z @ [a] @ s1) 
L(z @ [a] @ s2)
L(z @ (a.s1)) 
L(z @ (a.s2))
By:
Reduce -1
THEN
NthHyp -1
Generated subgoals:None
About: