12 lines
462 B
Text
12 lines
462 B
Text
|
definition Sum : nat → (nat → nat) → nat := sorry
|
||
|
definition Sum_weird [forward] (f g h : nat → nat) (n : nat) : (Sum n (λ x, f (g (h x)))) = 1 := sorry
|
||
|
print Sum_weird
|
||
|
|
||
|
/-
|
||
|
definition Sum_weird [forward] : ∀ (f g h : nat → nat) (n : nat), eq (Sum n (λ (x : nat), f (g (h x)))) 1 :=
|
||
|
λ (f g h : nat → nat) (n : nat), sorry
|
||
|
(multi-)patterns:
|
||
|
?M_1 : nat → nat, ?M_2 : nat → nat, ?M_3 : nat → nat, ?M_4 : nat
|
||
|
{Sum ?M_4 (λ (x : nat), ?M_1)}
|
||
|
-/
|