Show that an integer sided Pythagorean triangle can have atmost one perfect square side
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'You have made another human being happy. There is no greater accomplishment.' -bobbym
In your other thread
you posted a link.
It proves there are no solutions to the diophantine equation.
with a,b,c being positive integers by the method of infinite descent. Do you see how to apply it here?
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.