Mathematical logic Courses
Udemy Fundamentals of Deductive Reasoning - Mathematics
Udemy ¡Aprende matemáticas de principiante a avanzado!
Udemy Logic
Brilliant Logic II
Brilliant Logic (2020)
Brilliant Mathematical Logic
YouTube Symbolic Logic
Indian Institute of Technology, Kharagpur via Swayam Discrete Mathematics
NIOS via YouTube CS202: Discrete Structures
Saylor Academy