fix join's type
authorjim <jim@web>
Thu, 19 Mar 2015 15:58:07 +0000 (11:58 -0400)
committerLinux User <ikiwiki@localhost.members.linode.com>
Thu, 19 Mar 2015 15:58:07 +0000 (11:58 -0400)
commit3d276dedb3ccde00a014e49ced1e438d82f4bcef
tree84668ee01e7182ee5926116ea5943380e4f8d838
parent38d28a7db0862419ccfa485b919b711914179392
fix join's type
topics/week7_introducing_monads.mdwn