Single argument case for set-union etc. Shiro Kawai (23 Aug 2016 23:49 UTC)
Re: Single argument case for set-union etc. John Cowan (24 Aug 2016 17:09 UTC)
Fwd: Re: Single argument case for set-union etc. Arthur A. Gleckler (24 Aug 2016 17:57 UTC)

Re: Single argument case for set-union etc. John Cowan 24 Aug 2016 17:09 UTC