Structural rule A famous structural rule is known as cut. Considerable effort is spent by proof theorists in showing that cut rules are superfluous in various logics. More precisely, what is shown is that cut is only (in a sense) a tool for abbreviating proofs, and does not add to the theorems that can be proved. The successful 'removal' of cut rules, known as "cut elimination", is directly related to the philosophy of "computation as normalization" (see Curry–Howard correspondence); it often gives a good indication of the complexity of deciding a given logic. Structural rule In proof theory, a structural rule is
Ja Rule do it man. " DMX and Ja Rule finally ended their feud at VH1's 2009 Hip Hop Honors. By his association with DMX, Ja Rule was brought into the beef between DMX and Kurupt, being dissed on Kurupt's 1999 song ""Callin' Out Names"". Ja Rule responded with ""Still INC"" featuring Black Child and Cadillac Tah, a freestyle over Dr Dre's Still D.R.E. beat. The two eventually squashed their beef on the set of the movie Half Past Dead in 2002. Ja Rule Jeffrey Bruce Atkins (born February 29, 1976), better known by his stage name Ja Rule, is an American