From 85e745dd832e5386bfa17e7c44e3192a1e8227ca Mon Sep 17 00:00:00 2001
From: Marshall Lochbaum <mwlochbaum@gmail.com>
Date: Sun, 2 May 2021 21:01:23 -0400
Subject: Slightly quicker test for natural numbers

---
 src/r1.bqn | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/r1.bqn b/src/r1.bqn
index 160618c9..4c073ade 100644
--- a/src/r1.bqn
+++ b/src/r1.bqn
@@ -11,7 +11,7 @@ SetPrims ← {Decompose‿PrimInd ↩ 𝕩}
 IsArray ← 0=Type
 IsAtom  ← 1≤Type
 Int ← (1=Type)◶⟨0,⌊⊸=⟩
-Nat ← (1=Type)◶⟨0,0⊸≤×⌊⊸=⟩
+Nat ← (1=Type)◶⟨0,|∘⌊⊸=⟩
 ToArray ← <⍟IsAtom
 IsSimple ← 1×´IsAtom⌜
 Deshape ← IsArray◶{𝕩Fill⟨𝕩⟩}‿⥊
@@ -304,7 +304,7 @@ RepInd←(2⌊=∘⊣)◶{
   {e+↩r⋄1+𝕩}⍟{e=𝕨}˜`↕r×𝕩
 }‿{
   "𝕨/𝕩: Lengths of components of 𝕨 must match 𝕩" ! 𝕩=≠𝕨
-  "𝕨/𝕩: Amounts to replicate must be natural numbers" ! 1×´(0⊸≤×⌊⊸=)⌜𝕨
+  "𝕨/𝕩: Amounts to replicate must be natural numbers" ! 1×´|∘⌊⊸=⌜𝕨
   Ind 𝕨
 }‿{
   "𝕨/𝕩: Replication argument must have rank 0 or 1" ! 0˙
-- 
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