MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  cnpi Structured version   Visualization version   GIF version

Syntax Definition cnpi 10243
Description: The set of positive integers, which is the set of natural numbers ω with 0 removed.

Note: This is the start of the Dedekind-cut construction of real and complex numbers. The last lemma of the construction is mulcnsrec 10543. The actual set of Dedekind cuts is defined by df-np 10380.

Ref Expression
cnpi class N

See definition df-ni 10271 for more information.

Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator