lean2/tests/lean/630.lean.expected.out

definition pnat.pnat : Type₁ :=
{ (n : ℕ)| nat.gt n (nat.of_num 0)}
inductive prod : Type → Type → Type
constructors:
prod.mk : Π {A : Type} {B : Type}, A → B → A × B
-												fix(tests/lean): adjust tests to reflect changes in the standard library

											
										
										
											2015-07-24 16:59:49 +00:00
+								definition pnat.pnat : Type₁ :=
 								{ (n : ℕ)| nat.gt n (nat.of_num 0)}
-												refactor(library/init): define prod as an inductive datatype

Motivation: prod is used internally in the definitional package.
If we define prod as a structure, then Lean will tag pr1 and pr2 as
projections. This creates problems when we add special support for
projections in the elaborator. The heuristics avoid some case-splits
that are currently performed, and without them some files break.

											
										
										
											2015-06-26 00:15:16 +00:00
+								inductive prod : Type → Type → Type
 								constructors:
 								prod.mk : Π {A : Type} {B : Type}, A → B → A × B