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I don't understand Gödel's incompleteness theorem anymore
Is there a geometric analog of absolute value?
Why a group that has four elements of order two does not exist?
In a metric space is a dense subset of a dense subspace dense in the space itself?
If we didn't have examples of irrational numbers, would we know they exist?
Big $O$ notation and limit superior
Axiomatic definition of groups
Is there a classification of the group of units in every ring of order $p^2$?
If $F, K$ are fields, $F$ algebraically closed, and $F \subseteq K$ then $K = F$?
What is the problem with this method while integrating $(e^x-(2x+3)^4)^3$?
Why "normal subgroups occur as kernels of homomorphisms" is a big deal?
Countably infinite Cartesian product of finite sets is infinite