Common nonsense
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I later found out that Aristotelian logic held the answers, and modern symbolic logic was a weird set of mathematical formalisms that wrenched out one part of classical logic (propositions) but omitted the theory of terms (concepts), without which, logic becomes a system of meaningless symbol games. This is the book that showed me a world of logic both perfectly rigorous and perfectly descriptive of human cognition: https://www.amazon.com/Introduction-Objectivist-Epistemology... (if the author's name triggers you, obviously this book is not for you, but if you enjoy far-out intellectual adventures, you'll be in for a mind-blowing ride).