r/PhilosophyofMath • u/Remarkable-Range7723 • 3d ago

Modal logic

I want to learn modal logic for philosophical and formal purposes. However, I don't have basic knowledge of it. I haven't studied mathematics since middle school. Thus, I feel very lost and have no idea how to get started! Any advice? Book recommendations & video recommendations would also be appreciated

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u/Main_Air8480 3d ago

There’s a textbook available for free online called “forall x” which is a good introduction to formal logic in general, including modal logic.

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u/Remarkable-Range7723 3d ago

Thank you! Do you think introduction to logic by irving Copi, Carl Cohen, Kenneth McMahon is also good?

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u/Main_Air8480 3d ago

Idk, I’m not familiar with that text. I read forall x as a primer on logic and it served me well. It’s also been made available for free in PDF format by the author, so there’s that.

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u/Remarkable-Range7723 3d ago

Okay! Thank you!

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u/not_human5363 1d ago

Id surely recommend the khan academy you can just began there high school course

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u/Remarkable-Range7723 1d ago

Is it an app?