Basic facts about Thunk.

theorem Thunk.ext {α : Type u} {a : Thunk α} {b : Thunk α} (eq : Thunk.get a = Thunk.get b) : a = b

instance Thunk.instDecidableEqThunk {α : Type u} [DecidableEq α] : DecidableEq (Thunk α)

def Thunk.prod {α : Type u_1} {β : Type u_2} (a : Thunk α) (b : Thunk β) : Thunk (α × β)

The product of two thunks.

@[simp]

theorem Thunk.prod_get_fst : ∀ {α : Type u_1} {a : Thunk α} {α_1 : Type u_2} {b : Thunk α_1}, (Thunk.get (Thunk.prod a b)).fst = Thunk.get a

@[simp]

theorem Thunk.prod_get_snd : ∀ {α : Type u_1} {a : Thunk α} {α_1 : Type u_2} {b : Thunk α_1}, (Thunk.get (Thunk.prod a b)).snd = Thunk.get b