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But he that hath the
use of words, when he observes, that such equality was consequent, not
to the length of the sides, nor to any other           thing in his
triangle; but onely to this, that the sides were straight, and the
angles three; and that that was all, for which he named it a Triangle;
will boldly conclude Universally, that such equality of angles is in
all triangles whatsoever; and register his invention in these generall
termes, Every Triangle Hath Its Three Angles Equall To Two Right Angles.