At: mn 13 1 1 2 1 1 1 1 1 1 1 2
1. Alph: Type
2. St: Type
3. Auto: Automata(Alph;St)
4. Fin(Alph)
5. Fin(St)
6. EquivRel x,y:Alph*. x LangOf(Auto)-induced Equiv y
7. R: Alph*
Alph*
Prop
8. EquivRel x,y:Alph*. x R y
9. g: (x,y:Alph*//R(x,y))


10. m: 
11.
m ~ (x,y:Alph*//R(x,y))
12.
l:Alph*. LangOf(Auto)(l) 
g(l)
13.
x,y,z:Alph*. R(x,y) 
R((z @ x),z @ y)
g:((x,y:Alph*//(x R y))

).
l:Alph*. LangOf(Auto)(l) 
g(l)
By:
Witness g
THEN
Fold `languages` 0
Generated subgoals:None
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