diff options
| author |  pboutill <pboutill@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2012-12-21 21:47:43 +0000 |
|---|---|---|
| committer | pboutill <pboutill@85f007b7-540e-0410-9357-904b9bb8a0f7> | 2012-12-21 21:47:43 +0000 |
| commit | ec8332223b1f6716e49bbf78e0489881ca7bfa2b (patch) | |
| tree | 95c23e65916507f8442e3d5f1ac11e675fca52b8 /theories/Numbers/Natural | |
| parent | e9428d3127ca159451437c2abbc6306e0c31f513 (diff) | |
nat_iter n f x -> nat_rect _ x (fun _ => f) n
It is much beter for everything (includind guard condition and simpl refolding)
excepts typeclasse inference because unification does not recognize
(fun x => f x b) a when it sees f a b ...
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16112 85f007b7-540e-0410-9357-904b9bb8a0f7
Diffstat (limited to 'theories/Numbers/Natural')
| -rw-r--r-- | theories/Numbers/Natural/BigN/Nbasic.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/Numbers/Natural/BigN/Nbasic.v b/theories/Numbers/Natural/BigN/Nbasic.v index 5bde10087..161f523ca 100644 --- a/theories/Numbers/Natural/BigN/Nbasic.v +++ b/theories/Numbers/Natural/BigN/Nbasic.v @@ -371,7 +371,7 @@ Section CompareRec. intros n (H0, H); split; auto. apply Z.lt_le_trans with (1:= H). unfold double_wB, DoubleBase.double_wB; simpl. - rewrite Pshiftl_nat_S, base_xO. + rewrite base_xO. set (u := base (Pos.shiftl_nat wm_base n)). assert (0 < u). unfold u, base; auto with zarith. |