MphLee

Empty set (Italy)

http://math.eretrandre.org/tetrationforum/member.php?action=profile&uid=233

The main problems I like to "work/play/learn" with are Iteration of recursive definitions, hyperoperations, set theory and infinite cardinals, partial order theory, category theory, quandles and conjugation.

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Solution of $ax=a^x$

algebra-precalculus asked Apr 9, 2013 at 15:56

math.stackexchange.com

14 votes

Hao Wang's $\mathfrak S$ system/$\Sigma$ system: a "transfinite type" theory that avoids the Goedel's theorems.

reference-request math-history foundations type-theory asked May 12, 2013 at 9:39

math.stackexchange.com

10 votes

Conjugation Quandles and... "Quandle-Groups"? From quandles to Groups

reference-request gr.group-theory self-distributivity quandles asked Apr 8, 2014 at 20:19

mathoverflow.net

10 votes

What are $\Sigma _n^i$, $\Pi _n^i$ and $\Delta _n^i$?

reference-request logic notation computability descriptive-set-theory asked Mar 31, 2013 at 14:10

math.stackexchange.com

10 votes

Why infinite cardinalities are not "dense"?

set-theory cardinals asked Apr 27, 2013 at 9:28

math.stackexchange.com

8 votes

Philosophy of a Mathematician.

soft-question philosophy foundations asked May 8, 2013 at 8:24

math.stackexchange.com

7 votes

Allegories in easy words?

terminology category-theory definition asked Apr 20, 2013 at 20:59

math.stackexchange.com

7 votes

General overview about Recursion (free online texts)

reference-request recurrence-relations recursion asked Jan 23, 2014 at 19:46

math.stackexchange.com

7 votes

Conjugation Quandles and... "Quandle-Groups"? From quandles to Groups.

abstract-algebra group-theory reference-request knot-theory asked Apr 7, 2014 at 18:03

math.stackexchange.com

6 votes

Practical Tips: Mathematical research and discoveries

research mathematics references independent-researcher asked May 10, 2013 at 11:24

academia.stackexchange.com