and -- conjunction

Usage:

t and u
Inputs:
- t, a Boolean value or a function,
- u, a Boolean value or a function,
Outputs:
- a Boolean value or a function,

Description

If both t and u are booleans, then t and u returns true if both are true.

i1 : even 2 and isPrime 2

o1 = true

If they are both functions that return booleans, then the return value is also a function.

i2 : isEvenPrime = isPrime and even

o2 = isEvenPrime

o2 : FunctionClosure

i3 : isEvenPrime 2

o3 = true

i4 : isEvenPrime 3

o4 = false

Ways to use symbol and:

Boolean and Boolean
Function and Function

For the programmer

The object and is a keyword.

This operator may be used as a binary operator in an expression like x and y. The user may install binary methods for handling such expressions with code such as

         X  and  Y := (x,y) -> ...

where X is the class of x and Y is the class of y.

The source of this document is in Macaulay2Doc/operators.m2:306:0.

and -- conjunction

Description

See also

Ways to use symbol and:

For the programmer