Definition:Variable/Historical Note

Historical Note on Variable

The term variable, as opposed to a constant, was introduced by Gottfried Wilhelm von Leibniz.

However, the concept had already been established by Aristotle in his work on logic.

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
• 1992: George F. Simmons: Calculus Gems ... (previous) ... (next): Chapter $\text {A}.19$: Leibniz ($\text {1646}$ – $\text {1716}$)