From PhilPapers forum Aesthetics:

2010-08-04
Games and Art
Reply to Dilys Marsden
Aaron Smuts, and you also, reject the notion of analysing 'What is Art?' on the basis of necessary and sufficient conditions

Oops!  More correctly this should read:  "Aaron Smuts, and you also, reject necessary and sufficient conditions as a means of analysing 'What is Art?'

My apologies!

Dilys