Actually, those calculations are incorrect on the passage from line 5 to line 6.BodomiC said:
yeah, but see that x^2=(-x)^2 so y^2 can be both (-y)^2 or just y^2... so that means that this line can be trueDarkMare said:Actually, those calculations are incorrect on the passage from line 5 to line 6.
Line 5:
It is not true that
x = y <=> x^2 = y^2
What is true is that
x = y => x^2 = y^2
but x^2 = y^2 does not mean that x = y
x^2 = y^2BodomiC said:yeah, but see that x^2=(-x)^2 so y^2 can be both (-y)^2 or just y^2... so that means that this line can be true
Whoa whoa.. surely you can take a joke and a little trickery..._Aragorth_ said:damnit...maths sux