• x < y yields True if x is determined to be less than y.
• < < yields True if the form a strictly increasing sequence.
when its arguments are real numbers.
• Less does some simplification when its arguments are not numbers.
• For exact numeric quantities, Less
internally uses numerical approximations to establish numerical ordering. This process can be affected by the setting of the global variable $MaxExtraPrecision
• New in Version 1; modified in 3.