We show that the class of weak equivalences of a combinatorial model category can be detected by an accessible functor into simplicial sets.
Keywords: combinatorial model category, accessible category, simplicial sets
2000 MSC: 55U35, 18C35
Theory and Applications of Categories,
Vol. 24, 2010,
No. 5, pp 114-116.
http://www.tac.mta.ca/tac/volumes/24/5/24-05.dvi
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http://www.tac.mta.ca/tac/volumes/24/5/24-05.pdf
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