Question: Let M be a matroid and r be the rank function of M; let x, y E(M). Try the following statements : i) {2} is

Let M be a matroid and r be the rank function

Let M be a matroid and r be the rank function of M; let x, y E(M). Try the following statements : i) {2} is a loop if and only if r({x}) = 0. ii) x and y are parallel if and only if r({x,y})=r(x) = r(y) = 1. a = = Click here to Download Image (GIF)

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Let M be a matroid and r be the rank function of M; let x, y = E(M). Try the following statements: i) {x} is a loop if and only if r({x}) = 0. ii) x and y are parallel if and only if r({x,y}) = r(x)...

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