The visibly tensioned rope is compressively contracted in almost invisible increments of its girth dimensions everywhere along its length. This low-tide aspect of compression occurs in planes perpendicular to its tensed axis. Columns visibly loaded by weights applied only to their top ends are easily seen to have their vertical axes in compression, but invisibly the horizontal girths of these columns are also in tension as the result of a cigar-shaped, swelling pattern of forces acting in the column at right angles to its loaded axis, which tends, invisibly, to transform toward the shape of a squash or a banana. 642.01 Functions are never independent of one another. Functions occur only as inherently cooperative and accommodatively varying subaspects of synergetically transforming wholes.
Functions are covariants.
The meaning of a function is that it is part of a complementary pattern. X only in respect to Y. Tension and compression are always and only interfunctioning covariables whose seeming relative importance is a consequence of local pattern inspection. Multiplication is accomplished only by division. Universe expands through progressively differentiating out or multiplying discrete considerations. 642.10 Tetrahedral Models of Functions 642.11 Covarying functions are tetrahedrally modelable.