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Trivector as bivector b^c swept along vector a

A trivector (b^c)^a = a^b^c can according to Grassmann be visualized by displacing the bivector b^c parallel along the third linearly
independent vector a. The resulting oriented volume of the paraleliped is the trivector.

Compare the two other ways to sweep out the same trivector: (a^b)^c and (c^a)^b.

[ GA with Cinderella ]

Soli Deo Gloria. Created with Cinderella
by Eckhard Hitzer (Fukui).