diff options
Diffstat (limited to 'contrib/subtac/Utils.v')
| -rw-r--r-- | contrib/subtac/Utils.v | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/contrib/subtac/Utils.v b/contrib/subtac/Utils.v index 569c52e89..fc002a01b 100644 --- a/contrib/subtac/Utils.v +++ b/contrib/subtac/Utils.v @@ -4,6 +4,8 @@ Notation "'fun' { x : A | P } => Q" := (fun x:{x:A|P} => Q) (at level 200, x ident, right associativity). +Notation " {{ x }} " := (tt : { y : unit | x }). + Notation "( x & ? )" := (@exist _ _ x _) : core_scope. Notation " ! " := (False_rect _ _). @@ -82,6 +84,8 @@ Extraction Inline proj1_sig. Extract Inductive unit => "unit" [ "()" ]. Extract Inductive bool => "bool" [ "true" "false" ]. Extract Inductive sumbool => "bool" [ "true" "false" ]. +Axiom pair : Type -> Type -> Type. +Extract Constant pair "'a" "'b" => " 'a * 'b ". Extract Inductive prod => "pair" [ "" ]. Extract Inductive sigT => "pair" [ "" ]. |