| http://www.w3.org/ns/prov#value | - A has a pivot position in each row ??? ??? ??? pivot position A position in the original matrix that corresponds to a leading 1 in a reduced echelon matrix ??? ??? ??? pivot column A column that contains a pivot position ??? ??? ??? homogeneous A system that can be written as Ax = 0; the x = 0 solution is a TRIVIAL solution ??? ??? ??? independent If only the trivial solution exists for a linear e
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