# Definition:Classical Logic/Historical Note

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## Historical Note on Classical Logic

The foundations of the branch of logic know referred to as **classical logic** were laid down by Aristotle in the $4$th century BCE.

He did such a thorough job of what he did that logic was considered a finished science, and no significant contributions to the subject were made for another two thousand years.

## Sources

- 1959: A.H. Basson and D.J. O'Connor:
*Introduction to Symbolic Logic*(3rd ed.) ... (previous) ... (next): Chapter $\text I$ Introductory: $1$. Symbolic Logic and Classical Logic