nicolas
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 Oct18 awarded Notable Question Oct18 comment Does $1.0000000000\cdots 1$ with an infinite number of $0$ in it exist? I fail to see the connection of automaton with the problem at hand.. Oct18 comment Does $1.0000000000\cdots 1$ with an infinite number of $0$ in it exist? thanks for mentioning non standard analysis. that is what physicists are using everyday... Oct16 comment Past Papers Of multivariable calculus OF MIT,Princeton or harvard at the teacher office Oct9 answered Intersection of kernels and linear dependence of linear maps Jul2 awarded Curious Apr13 comment How to prove and interpret $\operatorname{rank}(AB) \leq \operatorname{min}(\operatorname{rank}(A), \operatorname{rank}(B))$? I am not familiar with the 'categorification'. How can one go from this to the rank inequality ? What functor is to be applied ? Apr11 comment function application order i think you are right about the conclusion. it is the convention of most textbook, so i better suck it up. i notice that lawvere uses the natural order though !(tac.mta.ca/tac/reprints/articles/16/tr16.pdf) Mar21 comment If $g \circ f$ is monic, then $f$ is monic Amazing answer..... Mar20 accepted function application order Mar19 asked function application order Mar19 comment How to prove hom functor preserves pullbacks @user43687 yes this is more powerful, although I quite like to have the direct proof as well. Mar19 comment Pullbacks of monic morphisms. of course, by the universal mapping property on the pullback : that there is a unique $h$ making the diagram commute aka realizing $g m'\circ h = m f\circ h$ Mar18 comment Pullbacks of monic morphisms. going to $f \circ h = f \circ k$ is easy, but I must be missing something as I dont see how that entails $h = k$. could you argue why ? Mar15 revised The distance between an element and a subset of a metric space. edited body Mar15 answered The distance between an element and a subset of a metric space. Mar1 comment Show that the direct sum of a kernel of a projection and its image create the originating vector space. sorry I know it is off-topic, but am i the only person for which mathjax does not render latex on stackexchange ? Feb10 revised Questions about Bayesian inference deleted 5 characters in body Feb10 awarded Teacher Feb10 answered Questions about Bayesian inference