Full Idea
The Leibniz-Kant criticism of empiricism is that experience cannot teach us why mathematical and logical facts couldn't be otherwise than they are.
Gist of Idea
Experience cannot teach us why maths and logic are necessary
Source
Jerrold J. Katz (Realistic Rationalism [2000], Int.xxxi)
Book Reference
Katz,Jerrold J.: 'Realistic Rationalism' [MIT 2000], p.-4