lean2/library/data/nat/nat.md

data.nat

The natural numbers.

• basic : the natural numbers, with succ, pred, addition, and multiplication
• order : less-than, less-then-or-equal, etc.
• bquant : bounded quantifiers
• sub : subtraction, and distance
• div : div and mod
• gcd : gcd, lcm, and coprime
• power
• bigops : finite sums and products
• find : search for a witness to an existence statement