No, it's akin to
if ((1 + 2 == 3) == true) (your case)
if (1 + 2 == 3)
The extra "== true" is just unnecessarily explicit.
Sorry for making a liiiiiitle mess earlier, but i rarely find greeks here. ( I think they're hiding! )
EDIT: Although even i couldn't read that message o_O. I hate Greeklish!!!
Devoted my life to programming...