subcontrary
nounEtymology From sub- + contrary.
1
Human sciences, Logic, Mathematics, Philosophy, Sciences Either of a pair of propositions at least one of which must be true
subcontrary
adjEtymology From sub- + contrary.
› Contrary in an inferior degree.
1
Geometry, Mathematics, Sciences Having, or being in, a contrary order; said of a section of an oblique cone having a circular base made by a plane not parallel to the base, but so inclined to the axis that the section is a circle; applied also to two similar triangles when so placed as to have a common angle at the vertex, the opposite sides not being parallel.
- Two planes drawn through the vertex of the cone parallel to the plane of the circular base , and that of a subcontrary section, are called by Chasles the cyclic planes of the cone1852, John Mulcahy, Principles of Modern Geometry:
2
Human sciences, Logic, Mathematics, Philosophy, Sciences Denoting the relation of opposition between the particular affirmative and particular negative. Of these both may be true and only one can be false.
- Derived terms
- subcontrarily