A plot should be described with as few terms
Each term should contain as
variables as possible.
These four squares
represent the term B.
On the same Veitch
diagram, these four
squares represent the
All six plotted squares combined are
described as B+C.
Notice that the lower corner squares are used
twice, allowing two groups of four squares,
each described by a one-variable term.
Referring to the top diagram above, this plot
could have been described as follows: The
shaded area is described as B.
unshaded squares could be described as BC and
would result in a plot described as B+BC.
One term now contains two variables (BC).