Is t>= 0 = A the Correct Equation for Correcting Math?

[Miike012]

Im trying to write using more mathematical terms.. and I wanted to know if this is correct...

Look at picture..

where it says t - 0 - A it should say t>= 0 = A

 

[LCKurtz]

That is correct but I would write it in a more compact form, either as

[0, ∞) or

{t | t ≥ 0}

 

[Miike012]

Cool thanks.