Simplex

Member for 10 years, 3 months
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12

Is an "an element of" expression a truth value?

Feb 18, 2017

8

Is this contraction of metric tensor derivatives symmetric?

Jun 30, 2016

6

$S$ is closed under pairwise unions $⇒$ $S$ is closed under arbitrary unions?

Apr 16, 2018

5

Is $\Bbb R$ different from $\Bbb R^ⁿ$ where $n > 1$, in that $\Bbb R$ is not a set of $1$-tuples?

Jul 10, 2017

2

Is this a proof that $\mathbb Q$ is dense in $\mathbb R$?

Dec 15, 2017

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