SINCE 1828
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square of opposition

noun phrase
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Definition of square of opposition

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

First Known Use of square of opposition

1864, in the meaning defined above

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The first known use of square of opposition was in 1864

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Dictionary Entries Near square of opposition

square off

square of opposition

square of the circle

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Cite this Entry

“Square of opposition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/square%20of%20opposition. Accessed 13 Aug. 2022.

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