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May
8
revised Composite of an immersion with the inverse map of another immersion is a diffeomorphism
edited body
May
8
revised $\{x:Ax\leq 0\}$ contains a subset of type $\{x:A'x=0, ax\leq 0\}$
deleted 38 characters in body
Feb
2
revised polar decomposition for non square matrices
deleted 6 characters in body; edited title
Oct
23
revised For every axiomatic system in first order logic there exists an equivalent independent system
deleted 171 characters in body
Oct
13
revised For every axiomatic system in first order logic there exists an equivalent independent system
added 120 characters in body
Oct
13
revised For every axiomatic system in first order logic there exists an equivalent independent system
added 129 characters in body
Jul
25
revised Intersection of 2 $p$-simplices is a finite union of some $p$-simplices
addition