Perpendicular
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Revision as of 14:56, 12 July 2015 by Alec (Talk | contribs) (Created page with "==Definition== In an i.p.s, {{M|(X,\langle\cdot,\cdot\rangle)}} we define {{M|x}} and {{M|y}} being perpendicular<ref name="FA">Functional Analysis - G...")