RLP is contained in RP, which is the same but has no space restriction, and in BPLP, which is similar but allows two-sided error (incorrect accepts). It is also contained in NL, since NL has a probabilistic reformulation similar to RLP but without the time restriction. __________________ 'Samsung LCD TVs' (http://www.lcd-tv-store.co.uk/products/Browse-By-Brand/Samsung.html) 'Compra borse' (http://it.bestshopping.com/serp/cn/Borse/cat/45987654321694.html) -- danica