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 Jan 10 awarded Popular Question Nov 23 awarded Notable Question Aug 23 awarded Notable Question Jun 18 accepted Trying to understand physical interpretation of outer product Jun 17 comment Trying to understand physical interpretation of outer product This is nice explanation. Just one thing : assuming v=u, can you explain (u⋅w)u in plain English language ? (In my original question see why they say 1 -Dimensional ? ) Jun 17 comment Trying to understand physical interpretation of outer product @MichaelCromer Yes, but I am not expert and still learning. Jun 17 asked Trying to understand physical interpretation of outer product Oct 15 awarded Popular Question Sep 24 awarded Autobiographer Jul 23 accepted What is a well built formula? Jul 23 comment What is a well built formula? Thanks for the details. So we can say that αβ is not a wff. Jul 23 comment What is a well built formula? the idea of identifying "Junk theorem" is very nice, and it gives me better reason to study this subject. Thanks. Jul 23 asked What is a well built formula? Jul 2 awarded Curious Feb 13 awarded Popular Question Aug 19 comment How do I explain the fallacy $\frac00=2$ in this case? Thanks for your answer. Can you give basic laws of mathematics in support of your argument. Aug 19 comment How do I explain the fallacy $\frac00=2$ in this case? That is why I said fallacy.. Aug 19 asked How do I explain the fallacy $\frac00=2$ in this case? Jul 1 awarded Yearling Apr 17 asked Why mathematical knots are defined as closed geometries unlike physical knots?