square of opposition
Date: 1864 a square figure on which may be demonstrated the logical relationships of contraries, contradictories, subcontraries, and subalterns and superalterns

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Square of opposition — In the system of Aristotelian logic , the square of opposition is a diagram representing the different ways in which each of the four propositions of the system are logically related ( opposed ) to each of the others. The system is also useful in …   Wikipedia

  • square of opposition — In traditional logic the square of opposition summarizes the logical relationships between the four forms of subject predicate proposition known as A, E, I, O: All X are Y; no X are Y; some X are Y; some X are not Y. In the diagram,… …   Philosophy dictionary

  • square of opposition — a square figure on which may be demonstrated the four logical oppositons by contrariety, subcontrariety, subalternation, and contradiction * * * Logic. a diagrammatic representation of the opposition of categorical propositions. [1860 65] …   Useful english dictionary

  • square of opposition — Logic. a diagrammatic representation of the opposition of categorical propositions. [1860 65] * * * …   Universalium

  • opposition, square of — Geometrical representation of the traditional logical relations of opposition (contradictories, contraries, subalterns) among the four types of propositions (universal affirmative or A proposition, universal negative or E, particular affirmative… …   Universalium

  • Opposition — may mean or refer to: Opposition (planets), a term describing the position of a celestial body Opposition (chess), a term describing the position of the kings relative to each other Opposition proceeding, an administrative process available under …   Wikipedia

  • square — [skwer] n. [ME < OFr esquarre < VL * exquadra < * exquadrare, to make square < L ex, out + quadrare, to square < quadrus, a square < base of quattuor,FOUR] 1. a plane figure having four equal sides and four right angles: see… …   English World dictionary

  • Opposition to the U.S. involvement in the Vietnam War — The movement against US involvment in the in Vietnam War began in the United States with demonstrations in 1964 and grew in strength in later years. The US became polarized between those who advocated continued involvement in Vietnam, and those… …   Wikipedia

  • Opposition to the Vietnam War — Articleissues cleanup = July 2008 essay = March 2008 globalize = July 2008 refimprove = June 2008Opposition to U.S. involvement in the Vietnam War is significant because domestic protest in the U.S.A. eventually forced The United States… …   Wikipedia

  • square — squarable, adj. squarelike, adj. squareness, n. squarer, n. /skwair/, n., v., squared, squaring, adj., squarer, squarest, adv. n. 1. a rectangle having all four sides of equal length …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”