Parallel straight lines are straight lines which, being in the same plane and being produced indefinitely in both directions, do not meet one another in either direction.
Father of geometry
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"What has been affirmed without proof can also be denied without proof."
Strange & Unusual"When a straight line set up on a straight line makes the adjacent angles equal to one another, each of the equal angles is right, and the straight line standing on the other is called a perpendicular …"
Strange & Unusual"And the whole is greater than the part."
Philosophical"The laws of nature are but the mathematical thoughts of God."
Strange & Unusual"If four magnitudes be proportional, the rectangle contained by the extremes is equal to the rectangle contained by the means."
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