Hello please could you tell me if my proof that the sqrt of 4 is irrational is correct.
therefore so ....1.1
This implies that a is greater than b and that a is even.
a is even so a=2k
put into 1.1
cancel by 4
this can be written as this implies that which implies that ....1.2
Equation 1.2 contradicts equation 1.1. This shows that a and b cannot be whole positive integers.