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| author | Pierre-Marie Pédrot | 2016-12-07 12:28:14 +0100 |
|---|---|---|
| committer | Pierre-Marie Pédrot | 2016-12-07 12:28:14 +0100 |
| commit | ad768e435a736ca51ac79a575967b388b34918c7 (patch) | |
| tree | 6f87c9bc585d15862b66c39feb3a5172e468f67f /engine/evd.ml | |
| parent | cf8ecf83b5cc52f7ea73dc1d3af59bf03deff688 (diff) | |
| parent | 40cffd816b7adbf8f136f62f6f891fb5be9b96a6 (diff) | |
Merge branch 'v8.6'
Diffstat (limited to 'engine/evd.ml')
| -rw-r--r-- | engine/evd.ml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/engine/evd.ml b/engine/evd.ml index d8a658e3e3..bffb407274 100644 --- a/engine/evd.ml +++ b/engine/evd.ml @@ -854,6 +854,13 @@ let is_eq_sort s1 s2 = if Univ.Universe.equal u1 u2 then None else Some (u1, u2) +(* Precondition: l is not defined in the substitution *) +let universe_rigidity evd l = + let uctx = evd.universes in + if Univ.LSet.mem l (Univ.ContextSet.levels (UState.context_set uctx)) then + UnivFlexible (Univ.LSet.mem l (UState.algebraics uctx)) + else UnivRigid + let normalize_universe evd = let vars = ref (UState.subst evd.universes) in let normalize = Universes.normalize_universe_opt_subst vars in |