Truth T, falsity F and the informational cuts t and f are tracked independently. Each corner is one value, each edge adds or removes one cut. Select a value, then apply negation.
Bottom face of the outer cube: the Belnap four. Height lifts a corner by t. The inner cube carries f.
ROWS N, T, F, B · COLUMNS NO INFO, t, f, t AND f
{{selName}} = {{selCuts}}
{{selClass}}
{{negLine}}
Ivory ring: the selected value. Dashed amber ring: its negation. N and B sit still under ¬, the two nonclassical values on the Belnap four.