From f3c36f132b01f600a743b6c96714ec35135e506f Mon Sep 17 00:00:00 2001
From: kalmar <kalmar@amu.edu.pl>
Date: Thu, 11 May 2017 18:17:42 +0200
Subject: [PATCH] parent_type, elem_type

---
 src/FPGroups.jl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/FPGroups.jl b/src/FPGroups.jl
index b32e27c..0a34cdc 100644
--- a/src/FPGroups.jl
+++ b/src/FPGroups.jl
@@ -23,6 +23,10 @@ end
 
 export FPSymbol, FPGroupElem, FPGroup, generators
 
+parent_type(::Type{FPGroupElem}) = FPGroup
+
+elem_type(::FPGroup) = FPGroupElem
+
 
 FPSymbol(s::String) = FPSymbol(s,1)