Schools and colleges no longer teach formal logic, as evidenced by the huge number of people who espouse conspiracy theories (all of which fall apart when subjected to formal logic). So, unless you ...

Logic studies how arguments work, and how ideas can fit together. Decision theory studies how decisions should be made, especially under uncertainty. Game theory considers how we reason strategically, ...

This post was updated Aug. 31 at 7:59 p.m. Warning: Spoilers for R.F. Kuang’s “Katabasis” ahead. “Katabasis” is an intriguing book for academics but possibly a challenging journey for casual readers.

THIS very able little book goes a long way to prove that logic is a human science, and not merely a more or less coherent collection of dry and irrelevant dogmas. The grounds of our beliefs, the ...