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“Oceania was at war with Eastasia: Oceania had always been at war with Eastasia.” [George Orwell, “1984”, 2.9]

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23 Why are the rational numbers not continuous? Feb 11 '14
10 Example of a function continuous at only one point. Jul 13 '12
9 Find $f'(8.23)$ where $f(x)=23|x|−37\lfloor x\rfloor+58\{x\}+88\arccos(\sin x)−40\max(x,0)$ Feb 16 '15
6 Is there any way to find the equation for this situation? Aug 20 '12
5 Sum of operator and adjoint is self-adjoint Jun 18 '12
4 Examples of 'almost' vector spaces where unitary law fails Feb 16 '15
3 Find a set A & a set B such that $A \cap (A \times B) \neq \emptyset$ Feb 24 '15
3 question on complete vector fields Jun 21 '12
3 differentiable manifold definition Jun 24 '12
3 Brouwer's fixed point theorem: root of polynomial in complex plane Feb 13 '14
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