factor

Author	SHA1	Message	Date
Doug Coleman	e4f5035257	extra: fix sets rename	2015-08-12 13:58:20 -05:00
John Benediktsson	64a1b15d4b	sets.extras: adding symmetric-diff and proper-subset?.	2013-04-09 10:37:50 -07:00
Doug Coleman	cadde9117c	sets.extras: Initial checkin. Add setwise-xor word like setxor1d in numpy.	2013-03-06 10:00:13 -08:00