Yes, but only for testing:
It is sometimes patently obvious by looking at a construction, that something is amiss.
However, it DOES NOT PROVE ANYTHING - the eye may suggest that something is true; it may then become a ';conjecture';. A more reasoned, or mathematical justification is called for in order to prove the truth of the conjecture, for the eye can easily be fooled into believing.
A magician earns his or her living by very successfully deceiving the eye.True or false the eye is a valid means for testing the truth of a construction?
true.True or false the eye is a valid means for testing the truth of a construction?
So, so false. Have a look at http://www.manzonderkop.be/post.do?id=29鈥?/a> and you'll be convinced.
True . Its called to eye ball something,particularly measurements.
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