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answered Why do the interesting antihomomorphisms tend to be involutions?
Apr
13
answered How do mathematicians find formulas?
Apr
10
answered What does the term “undefined” actually mean?
Mar
12
answered Maximal Principle: Why using the new transition matrix $\tilde{P}$?
Mar
5
asked Is there a projective metric on a projective space induced by a p-norm?
Feb
23
answered How do people who study intensely abstract mathematics “imagine” or understand the concepts they are studying or being taught?
Feb
22
answered Can every rational function be represented in barycentric form?
Feb
21
asked Can every rational function be represented in barycentric form?
Feb
16
asked Is the 3d Schwartz space isomorphic to a subspace of the 1d Schwartz space?
Feb
15
answered Notable examples of “impossible” results ruled out by earlier barrier or no-go theorems or widespread beliefs
Nov
3
asked Example of a commutative ring which is not a subring of a commutative ring where every non-invertible element is a zero-divisor
Nov
1
asked Which associative and commutative operations are defined for any commutative ring?
Oct
31
answered Can the b-adic representation of rational numbers (by quote notation) be extended to non-terminating expansions?
Oct
30
asked Can the b-adic representation of rational numbers (by quote notation) be extended to non-terminating expansions?
Oct
6
answered Are higher order logics substantially stronger than second order
Oct
4
asked Is multiplication in mixed radix numeral systems complicated?
Aug
18
answered How much maths can we do in NF(U)?
Aug
16
answered Why learn to solve differential equations when computers can do it?
Aug
15
answered Can Goodstein's theorem be expressed as an axiom or axiom scheme in PA?
Aug
15
answered Which natural number predicates can be defined in Robinson arithmetic?