A metric space \((E,d)\) satisfies the following except
\(d(x,y)\leq d(x,z)+d(z,y)\) for all \(x,y,z\in E\)
\(d(x,y)= 0\)
—>> \(d(x,y)\leq 0\) for all \(x,y\in E\)
\(d(x,y)=d(y,x)\) for all \(x,y\in E\)
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A metric space \((E,d)\) satisfies the following except
\(d(x,y)\leq d(x,z)+d(z,y)\) for all \(x,y,z\in E\)
\(d(x,y)= 0\)
—>> \(d(x,y)\leq 0\) for all \(x,y\in E\)
\(d(x,y)=d(y,x)\) for all \(x,y\in E\)
