From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 22 Feb 2012 10:49:25 +0000 (+0000)
Subject: new THEORY, define inpatch
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topbloke.git;a=commitdiff_plain;h=a2bee3f9f4ecc497a19a96a2f6b1264a1f9809e7;ds=sidebyside

new THEORY, define inpatch
---

diff --git a/THEORY b/THEORY
index 5dd24c3..f40a1fc 100644
--- a/THEORY
+++ b/THEORY
@@ -5,6 +5,9 @@ GENERAL
  Patch P has two sets P+, P-
  Ancestors A(C,P) = { Ca \elem C | Ca \elem P }
  Ends E(C,P) = maximal elements of A(C,P)
+ Patch inclusion
+   C \haspatch P    <=> [ \forall D \elem P+: D \isin C <=> D <= C ]
+   C \nothaspatch P <=> [ \forall D \elem P+: D \notisin C ]
 
 COMMIT ANNOTATIONS