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## Main Question or Discussion Point

The Pauli principle say that many body fermi particle wave function is antisymmetry if we permute two particles.Then if the spatial wave function is antisymmetry,so there is not exist two particle occupy a same spatial coordinate at the same time.But I do not understand how about the circumtance if the spatial wave function being not antisymmetry(while the whole function still antisymmetry to satisfy the Pauli principle).I wonder this question because matter always occupy spatial volume.