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Re: [Coq-Club] typo in manual?

From: Daniel Schepler <dschepler AT gmail.com>
To: t x <txrev319 AT gmail.com>
Cc: coq-club <coq-club AT inria.fr>
Subject: Re: [Coq-Club] typo in manual?
Date: Wed, 9 Oct 2013 15:59:23 -0700

Nope, that just provides syntactic sugar for a match statement on an inductive type with a single constructor. For example:

Definition my_projT1 {A:Type} {P:A->Type} (x : sigT P) : A :=
let '(existT a p) := x in a.

Definition my_projT2 {A:Type} {P:A->Type} (x : sigT P) :
P (my_projT1 x) :=
let '(existT a p) as x' := x return (P (my_projT1 x')) in p.
--

Daniel Schepler

On Wed, Oct 9, 2013 at 2:25 PM, t x <txrev319 AT gmail.com> wrote:

Quoting http://coq.inria.fr/distrib/current/refman/Reference-Manual003.html :

term ::= ...
| let ’ pattern [in term] := term [return_type] in term

What does the ' mean? Is it a typo?

[Coq-Club] typo in manual?, t x, 10/09/2013
- Re: [Coq-Club] typo in manual?, Daniel Schepler, 10/10/2013