Top network posts

• 119 If $2^x $and $3^x$ are integers, must $x$ be as well?
• 59 How to write $\aleph$ by hand
• 48 What is the cardinality of the set of all topologies on $\mathbb{R}$?
• 43 Finite extension of fields with no primitive element
• 33 Proof of no prime-representing polynomial in 2 variables
• 32 Proof of recursive formula for "fusible numbers"
• 31 Checking if two graphs have the same universal cover
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