Rank | Theorem | Name |
2 | Thm* R:(T T Prop), k: , x,y:T.
Thm* (x R^k y)
Thm* 
Thm* ( L:T List.
Thm* (||L|| = k+1 & L[0] = x & last(L) = y & ( i: k. L[i] R L[(i+1)])) | [rel_exp_list] |
cites the following: |
1 | Thm* L:T List, x:T. null(L)  last([x / L]) = last(L) | [last_cons] |
0 | Thm* a:T, as:T List, i: . 0<i  i ||as||  [a / as][i] = as[(i-1)] | [select_cons_tl] |
1 | Thm* as:A List. as = nil  ||as|| 1 | [length_of_not_nil] |