Source: cirosantilli/minkowski-space

= Minkowski space
{c}
{tag=Pseudometric space}
{wiki}

<\R^4> with a weird <dot product>-like operation called the <Minkowski inner product>.

Because the <Minkowski inner product> product is not <positive definite>, the <norm induced by an inner product> is a <norm>, and the space is not a <metric space> strictly speaking.

The name given to this type of space is a <pseudometric space>.

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