:: Numerals - Requirements
:: by Library Committee
:: Received February 27, 2003
:: Copyright (c) 2003-2021 Association of Mizar Users
:: This file contains statements which are obvious for Mizar checker if
:: "requirements NUMERALS" is included in the environment description
:: of an article. They are published for testing purposes only.
:: Users should use appropriate requirements instead of referencing
:: to these theorems.
:: Some of these items need also other requirements for proper work.
:: Statements which cannot be expressed in Mizar language are commented out.