Combine assertions with &&:

A symbolic conjunction:

A system of equations:

Enter using and:

And works with any number of arguments:

And is associative:

And with explicit True or False arguments will simplify:

And evaluates its arguments in order, stopping when an argument evaluates to False:

The order of arguments may be important:

Symbolic transformations will not preserve argument ordering:

TraditionalForm formatting:

Combine conditions in Wolfram Language code:

If an argument of And evaluates to False, any subsequent arguments are not evaluated:

The argument order in And matters; if the last two arguments are reversed, I>0 is evaluated:

Combine assumptions:

Combine equations and inequalities; And is used both in the input and in the output:

Use And to combine conditions:

A cellular automaton based on And:

Find the area of the intersection of sets given by algebraic conditions:

This shows the set:

Truth table for binary And:

Ternary And:

Zero-argument And is True:

And with a single argument will return the evaluated argument regardless of value:

&& has higher precedence than ||:

Use BooleanConvert to expand And with respect to Or:

De Morgan's laws relate And, Or, and Not:

Conjunction of conditions corresponds to the product or Min of Boole functions:

Use Thread to thread over lists: