Natural logic

Definitions

  • Chambers's Twentieth Century Dictionary
    • Natural logic the natural faculty of distinguishing the true from the false: the logical doctrine applicable to natural things as opposed to the logic of faith
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Quotations

  • Francis Bacon
    Francis%20Bacon
    “Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, grave; logic and rhetoric, able to contend.”

Etymology

Chambers's Twentieth Century Dictionary
Gr. logikē, from logos, speech.

Usage

In literature:

It is logical, a real leading up of thought to natural climax.
"Journeys Through Bookland, Vol. 10" by Charles Herbert Sylvester
Logic and natural science will then constitute the sum of knowledge.
"The Approach to Philosophy" by Ralph Barton Perry
To warrant a logical belief in design in nature three things are essential.
"Theism or Atheism" by Chapman Cohen
His naturally capable mind became filled with all that Greece had to give in the line of logical and rhetorical thought.
"Historic Tales, vol 10 (of 15)" by Charles Morris
Gregory's attitude was perfectly natural and logical.
"Masters of the Wheat-Lands" by Harold Bindloss
Nature is logical in everything it does.
"The Voyages and Adventures of Captain Hatteras" by Jules Verne
There is not a disaster that you have mentioned but what possesses its perfectly logical, natural cause.
"The Golden Woman" by Ridgwell Cullum
Thus it comes about by inevitable logic that when man gets his gods from nature, he has a number of them.
"History of Religion" by Allan Menzies
I don't quite understand how, logically and naturally, anything else was possible.
"The Strand Magazine, Volume V, Issue 25, January 1893" by Various
Natural selection, in sensation, 10; in logic, 101.
"The Religious Sentiment" by Daniel G. Brinton
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In news:

The IBM breakthrough, first reported in Nature Nanotechnology and by the New York Times, uses carbon nanotubes, a type of molecule that is an alternative to silicon, for the creation of miniature logic gates in microprocessors .
As a result, the tedious nature of working with large format cameras has helped me in making a logical transition to making photographs with the Hulcherama panoramic camera.
Art Boy naturally assumed the most logical explanation: my brain had been taken over by aliens.
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In science:

The progressions of chords follow certain logic that art imposes upon nature.
Music in Terms of Science
Implemented on top of Mathematica, its core language is a version of higher-order predicate logic that contains a natural programming language such that algorithms can be coded and verified in a unified formal frame.
Symbolic Analysis for Boundary Problems: From Rewriting to Parametrized Gr\"obner Bases
This may explain why logic programming works so well at natural language processing.
Logic Programming, Functional Programming, and Inductive Definitions
Our result provides, in particular, a natural way to extend the notion of answer sets in other logics.
Applications of Intuitionistic Logic in Answer Set Programming
Of particular interest to us are multimodal logics because they can be used to naturally model the interaction of several agents.
Applications of Intuitionistic Logic in Answer Set Programming
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