1 | 12. ((inl(i1) s1) (inr(i1) s1)) 13. j:Vertices(the_graph).
i1-the_graph- > j  j = i1  (inl(j) s2) member-paren(x,y.the_obj.eq(x,y);j;s1) 14. P(i1,[inr(i1) / s1],s2) 15. (inr(i1) s2) 16. l_disjoint(Vertices(the_graph)+Vertices(the_graph);s2;s1) 17. no_repeats(Vertices(the_graph)+Vertices(the_graph);s2) 18. paren(Vertices(the_graph);s2) 19. j:Vertices(the_graph). (inr(j) s2)  i1-the_graph- > *j 20. x,y:Vertices(the_graph). the_obj.eq(x,y)  x = y 21. T:Type, s:T, x:Vertices(the_graph), f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
( y:Vertices(the_graph). x-the_graph- > y  (y L))
& the_obj.eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L) 22. T:Type, s:T, f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
no_repeats(Vertices(the_graph);L)
& ( y:Vertices(the_graph). (y L))
& the_obj.vacc(f,s) = list_accum(s',x'.f(s',x');s;L) (inl(i1) s1) | 2 steps |
  |
2 | 12. ((inl(i1) s1) (inr(i1) s1)) 13. j:Vertices(the_graph).
i1-the_graph- > j  j = i1  (inl(j) s2) member-paren(x,y.the_obj.eq(x,y);j;s1) 14. P(i1,[inr(i1) / s1],s2) 15. (inr(i1) s2) 16. l_disjoint(Vertices(the_graph)+Vertices(the_graph);s2;s1) 17. no_repeats(Vertices(the_graph)+Vertices(the_graph);s2) 18. paren(Vertices(the_graph);s2) 19. j:Vertices(the_graph). (inr(j) s2)  i1-the_graph- > *j 20. x,y:Vertices(the_graph). the_obj.eq(x,y)  x = y 21. T:Type, s:T, x:Vertices(the_graph), f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
( y:Vertices(the_graph). x-the_graph- > y  (y L))
& the_obj.eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L) 22. T:Type, s:T, f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
no_repeats(Vertices(the_graph);L)
& ( y:Vertices(the_graph). (y L))
& the_obj.vacc(f,s) = list_accum(s',x'.f(s',x');s;L) (inr(i1) s1) | 2 steps |
  |
3 | 12. ((inl(i1) s1) (inr(i1) s1)) 13. j:Vertices(the_graph).
i1-the_graph- > j  j = i1  (inl(j) s2) member-paren(x,y.the_obj.eq(x,y);j;s1) 14. P(i1,[inr(i1) / s1],s2) 15. (inr(i1) s2) 16. l_disjoint(Vertices(the_graph)+Vertices(the_graph);s2;s1) 17. no_repeats(Vertices(the_graph)+Vertices(the_graph);s2) 18. paren(Vertices(the_graph);s2) 19. j:Vertices(the_graph). (inr(j) s2)  i1-the_graph- > *j 20. x,y:Vertices(the_graph). the_obj.eq(x,y)  x = y 21. T:Type, s:T, x:Vertices(the_graph), f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
( y:Vertices(the_graph). x-the_graph- > y  (y L))
& the_obj.eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L) 22. T:Type, s:T, f:(T Vertices(the_graph) T).
L:Vertices(the_graph) List.
no_repeats(Vertices(the_graph);L)
& ( y:Vertices(the_graph). (y L))
& the_obj.vacc(f,s) = list_accum(s',x'.f(s',x');s;L) l_disjoint(Vertices(the_graph)+Vertices(the_graph);nil;s1) | 1 step |