" Matters of great concern should be treated lightly " - - Nabeshima Naoshige (?) quoted in the Hagakure Please see the whole context of the quote.

(This quote may be a rephrasing of Tao-Te-Ching's Chapter 63.)August 14, 2015. Alternative Voting: some scenarios

August 19, 2015. Group of Death

August 20, 2015. Sums of k

September 2, 2015 Bits and bans

September 13, 2015. Deriving the Y combinator

October 18, 2015. Inverses in definitions: Continuity

October 27, 2015 Inverses in definitions II: measurability

November 29, 2015 Data Structure: Zipper

August 26, 2016 Counting and Entropy: The First Cut

November 4, 2016. Birkhoff's Ergodic Theorem and Permutations

February 23, 2018. Which utility should we maximize?

July 18, 2018. Is it possible to draw Venn diagrams for arbitrary number of sets using only circles?

February 28, 2023. High-school math 1: interest rates, EMIs etc.

April 7, 2024. Elections in federal countries: independence.