Maths

The number is the basic concept of mathematics, which arose in the consciousness of man many thousands of years before our era, and then shaped and developed along with the development of civilization and culture. Once the distinction between "one"...

Propositional calculus is a branch of mathematical logic that studies relationships between sentences (propositional variables) or propositional functions created by means of propositional connectives from simpler sentences or propositional functions. The propositional calculus defines the ways of using...