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A comment on Ask HN: Recommendations for Learning Logical Reasoning?.
https://forallx.openlogicproject.org/forallxyyc.pdf
Highly recommended. Also provides good preparation if you want to go on to study topics like non-standard logic and automated proof systems.
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https://forallx.openlogicproject.org/forallxyyc.pdf
Highly recommended. Also provides good preparation if you want to go on to study topics like non-standard logic and automated proof systems.