# isTable -- whether something is a list of lists of equal length

## Synopsis

• Usage:
isTable t
• Inputs:
• t, ,
• Outputs:
• b, , whether or not $t$ is a table

## Description

 i1 : isTable {{1,2,3},{4,5,6}} o1 = true i2 : isTable {{1,2,3},{4,5}} o2 = false

## Caveat

It is intrinsically impossible to represent a $0\times k$ matrix as a list of lists.