Guess du jour:
A pair of vector entities require at least three bars for their comparison. Scalars, depending on how they are defined, may only need one bar. Boolean-type binaries may use however many bars are needed to construct the Boolean condition. So, PeV and JW need 3 bars; V/Vy needs 2 bars; PFBO uses 3 bars; and IBGS needs only 1 bar.
lj
A pair of vector entities require at least three bars for their comparison. Scalars, depending on how they are defined, may only need one bar. Boolean-type binaries may use however many bars are needed to construct the Boolean condition. So, PeV and JW need 3 bars; V/Vy needs 2 bars; PFBO uses 3 bars; and IBGS needs only 1 bar.
lj

