Leonardo
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# 35 Posts

 Nov27 asked What, if anything, does it mean to be neither finite nor infinite for real numbers? Oct20 asked Tallest bubble tower induction proof Aug12 asked How do I know what to substitute to simplify a limit? Aug9 asked What is another, perhaps quicker and nicer way of solving this question? Aug8 answered Help with Geometry (sphere) question Jul22 asked How would you interpret this question focusing on problem solving? Jul8 asked Finding points of intersection between a line and a curve Apr10 asked How can I determine the values of a third point to make all 3 collinear in $\mathbb{R}^3$ Apr7 asked What does it mean to be proportional to something? Apr6 asked Find all values of $a$ such that $w = ai- \frac{a}{3}j$ is a unit vector Apr6 asked Solve binomial expression with a variable under a square root? Mar12 asked How might one go about proving this poorly worded theorem about divisibility with the number 3? Feb26 asked Can we have a matrix whose elements are other matrices as well as other things similar to sets? Feb26 asked Is this a correct proof for this relation? Feb26 asked Is the relation on the positive integers defined by $(x,y) \in R$ if $x = y^2$ only antisymmetric? Feb22 asked Does there exist any elements which I can add to a Relation such that the Relation remains Sym/Anti, Trans, and Reflexive? Feb19 asked Prove that $f(n) = n^2 - 1$ is not injective and not surjective. Am I doing it right? Feb5 asked How does one select some $i$ to prove $\exists i$ s.t. $s_i \leq A$ where $A$ is the average of real numbers $(s_1 + s_2 + . . . + s_n) / n$ Feb5 asked Advice? homework: $\forall x,y \in \mathbb{R}, x \in \mathbb{Q} \land y \notin \mathbb{Q} \implies (x + y) \notin \mathbb{Q}$ Jan26 asked How would one prove that $\sqrt{n}$ is the largest divisor that needs to be checked to determine if $n$ is prime?