Disjoint unions of enumerated sets

[hivert]

The patch implement the disjoint union of a family of enumerated sets. It allows in particular to deal with infinite unions such as in

sage: DisjointUnionEnumeratedSets(
...       Family(NonNegativeIntegers(), Permutations))
Disjoint union of Lazy family (Permutations(i))_{i in Non negative integers}

Depend on #7395.

Florent

CC: @sagetrac-sage-combinat

Component: combinatorics

Keywords: Disjoint union, enumerated sets

Author: Florent Hivert

Reviewer: Nicolas M. Thiéry

Merged: sage-4.3.alpha0

Issue created by migration from https://trac.sagemath.org/ticket/7396

[hivert]

Attachment: trac_7396_enumset_unions-fh.patch.gz

[hivert]

Description changed:

--- 
+++ 
@@ -6,5 +6,7 @@
 Disjoint union of Lazy family (Permutations(i))_{i in Non negative integers}
 ```
 
+Depend on #7395.
+
 Florent
 

[nthiery]

comment:3

Patch good to go (we polished it together:-))!

[mwhansen]

Merged: sage-4.3.alpha0