The set of natural numbers starts with 0, (or 1) and moves to higher values. The subsequent numbers are 2, 3, 4, 5, 6, 7, 8, 9 ...

Each of the numbers is 1 greater than the number preceding it.

9 is greater than 4 by 5.

**9 is greater than 4, 4< 9 is true.**

The symbol "<" represents "is less than". So, when a mathematician states;

x<y

the mathematician is stating that x is less in value than y. The opposite is ">" which represents "is greater than".

So, it is true that 4 is less than 9, as nine is a higher value than 4. Therefore,

**4<9 is true.**

Is 4 < 9

The symbol used above i.e < means less than and it's opposite symbol > means greater than.

So yes 4 < 9 or 4 is less than 9.

Here's an easy way to remember the symbol < is facing in the direction of the letter L, and less starts with L, so there you go, easiest way to remember.