-
given statement.
Cases of the
incorrect application of the contrary,
subcontrary and
subalternation relations (these hold in the
traditional square of...
- In mathematics, the
harmonic mean is a kind of average, one of the
Pythagorean means. It is the most
appropriate average for
ratios and
rates such as speeds...
- (which the
medievals called subcontraries, subcontrariae) can both be true, but they
cannot both be false.
Since subcontraries are
negations of universal...
- \lnot P)} .
Paraconsistent logics have been
developed that
allow for
subcontrary-forming operators. Model-theoretic
paraconsistent logicians often deny...
- are
subalterns (possibly both are true, and
possibly both are false);
subcontraries (both may be true, but not that both are false);
contraries (both may...
- are purple" and "no
round squares are purple" are true. Similarly, the
subcontrary relationship is
dissolved between the
existential statements "some S...
- the
existence an
oblique cylinder of the
parallel circular sections subcontrary to the
series of
which the
bases are two.
Proposition nine
proves that...
- the
fixed generating circle and the
other is
called by
Apollonius the
subcontrary sections. If one
looks at the
triangles formed by the
diameters of the...
- "negation" in
paraconsistent logic is not
really negation; it is
merely a
subcontrary-forming operator.[full
citation needed][full
citation needed]
Those who...
-
terms the
greater and the
lesser have the
interval between them equal.
Subcontrary,
which we call harmonic, is the mean when they are such that, by whatever...