AreParallel Command

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AreParallel[ <Line>, <Line> ]
Decides if the lines are parallel.

Normally this command computes the result numerically. This behavior can be changed by using the Prove command.

Example:
AreParallel[Line[(1, 2), (3, 4)], Line[(5, 6),(7,8)]] yields true since the given lines are parallel.
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