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natural deduction

British  

noun

  1. a system of formal logic that has no axioms but permits the assumption of premises of an argument. Such a system uses sequents to record which assumptions are operative at any stage Compare axiomatic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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What seemed like a natural deduction in the West -- behaving like a group must mean a suppression of the self -- was a leap in logic in Japan.

From Salon Jun. 18, 2011

A natural deduction from this was that one person or few persons must own many times 40 shares to bring the average up.

From Time Magazine Archive

If somebody says: "A rickety cradle may mean a rickety baby," the natural deduction, one would think, would be to give the people a good cradle, or give them money enough to buy one.

From Utopia of Usurers and Other Essays by Chesterton, G. K. (Gilbert Keith)

This would be the natural deduction to draw from the premise of evolution.

From The Saint by Thayer, William Roscoe

The only natural deduction is that it comes from the same source as the other sayings, and that source was not our synoptic Gospels.

From Supernatural Religion, Vol. II. (of III) An Inquiry into the Reality of Divine Revelation by Cassels, Walter Richard

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