I haven’t actually read it, but I’ve heard good things about More Precisely: The Math You Need to Do Philosophy and the table of contents looks good to me:
SETS
RELATIONS
MACHINES
SEMANTICS
PROBABILITY
INFORMATION THEORY
DECISIONS AND GAMES
FROM THE FINITE TO THE INFINITE
BIGGER INFINITIES
Sets, relations, probability, information theory and decisions and games are all especially valuable and widely applicable IME. It also claims to not require anything more than a high school math background.
I haven’t actually read it, but I’ve heard good things about More Precisely: The Math You Need to Do Philosophy and the table of contents looks good to me:
SETS
RELATIONS
MACHINES
SEMANTICS
PROBABILITY
INFORMATION THEORY
DECISIONS AND GAMES
FROM THE FINITE TO THE INFINITE
BIGGER INFINITIES
Sets, relations, probability, information theory and decisions and games are all especially valuable and widely applicable IME. It also claims to not require anything more than a high school math background.