Popular Lectures on Logic

Crisp, easy-to-understand lectures on logic.

30 Principles of Logic
Mathematical Logic
Trilingual Logic
101 Principles of Logic
Different kinds of Mathematical Functions: A Dialogue
Functions, Bijections and Mapping-relations
Logic and Formal Truth
Relations and Ordinal Numbers
Nine Kinds of Number
Causality
Analyticity
Is Mind an Emergent Property?

Is Time-travel Possible?

What is a Formal Language?