diff options
| author |  glondu <glondu@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-09-23 10:01:20 +0000 |
|---|---|---|
| committer | glondu <glondu@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2010-09-23 10:01:20 +0000 |
| commit | 679801623c1f55d0081f952c2094c3572fa39d4f (patch) | |
| tree | b87f22ad4ca0db14f978ba299af22fd3d3edf081 /checker | |
| parent | c92183a4bc227dbcfc3bf874801bd03724e5541d (diff) | |
Fix inconsistency in Prop/Set conversion check
This commit fixes a bug that made the system inconsistent with proof
irrelevance (the main idea being that Set = Prop by reflexivity).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13450 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'checker')
| -rw-r--r-- | checker/reduction.ml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/checker/reduction.ml b/checker/reduction.ml index 1f963d125..a86d23ecb 100644 --- a/checker/reduction.ml +++ b/checker/reduction.ml @@ -152,7 +152,8 @@ type conv_pb = let sort_cmp univ pb s0 s1 = match (s0,s1) with - | (Prop c1, Prop c2) -> if c1 = Pos & c2 = Null then raise NotConvertible + | (Prop c1, Prop c2) when pb = CUMUL -> if c1 = Pos & c2 = Null then raise NotConvertible + | (Prop c1, Prop c2) -> if c1 <> c2 then raise NotConvertible | (Prop c1, Type u) -> (match pb with CUMUL -> () |