From e33800cfa16a01c3adbdfcf29c0ca799463da767 Mon Sep 17 00:00:00 2001
From: kalmarek <kalmar@amu.edu.pl>
Date: Wed, 15 Aug 2018 19:19:49 +0200
Subject: [PATCH] use the simple string constructor for perm

---
 src/Projections.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Projections.jl b/src/Projections.jl
index c3dfb9e..0617283 100644
--- a/src/Projections.jl
+++ b/src/Projections.jl
@@ -92,7 +92,7 @@ function idempotents(RG::GroupRing{Generic.PermGroup{S}}, T::Type=Rational{Int})
         return GroupRingElem{T}[one(RG,T)]
     elseif RG.group.n == 2
         Id = one(RG,T)
-        transp = convert(T, RG(RG.group([2,1])))
+        transp = RG(perm"(1,2)", T)
         return GroupRingElem{T}[1//2*(Id + transp), 1//2*(Id - transp)]
     end