From e559dfc4995ae6777d9ff07d34db738cb77a519c Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Tue, 4 Feb 2020 18:40:24 +0100
Subject: Adding an alias "pose proof (x:=a)" for "pose proof a as x".

This is to be consistent with "pose (x:=a)" (and an alternative to
"assert (x:=a)").

This was suggested by
"https://github.com/HoTT/HoTT/pull/1208#discussion_r374342962".
---
 doc/sphinx/proof-engine/tactics.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'doc/sphinx')

diff --git a/doc/sphinx/proof-engine/tactics.rst b/doc/sphinx/proof-engine/tactics.rst
index 6a0ce20c79..206342fef1 100644
--- a/doc/sphinx/proof-engine/tactics.rst
+++ b/doc/sphinx/proof-engine/tactics.rst
@@ -1452,6 +1452,19 @@ Controlling the proof flow
    While :tacn:`pose proof` expects that no existential variables are generated by
    the tactic, :tacn:`epose proof` removes this constraint.
 
+.. tacv:: pose proof (@ident := @term)
+
+   This is an alternative syntax for :n:`assert (@ident := @term)` and
+   :n:`pose proof @term as @ident`, following the model of :n:`pose
+   (@ident := @term)` but dropping the value of :token:`ident`.
+
+.. tacv:: epose proof (@ident := @term)
+
+   This is an alternative syntax for :n:`eassert (@ident := @term)`
+   and :n:`epose proof @term as @ident`, following the model of
+   :n:`epose (@ident := @term)` but dropping the value of
+   :token:`ident`.
+
 .. tacv:: enough (@ident : @type)
    :name: enough
 
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