There was perhaps not much that was new in the understanding or the development of Aristotle's doctrine; but logic was no longer the only focal point of Aristotelian studies.
Over a century later, neurobiologists address the circuit doctrine: the logic of the core units of neuronal circuitry that control animal behavior.
But the military's new counter-insurgency doctrine turned this logic on its head.
An associated doctrine is that logic makes up, with grammar and rhetoric, the trivium, or the three arts of language.
Several particular doctrines of Arabic logic, however, were very influential.
When we compare Brentano's results with the doctrines of modern logic, we see that they are in complete agreement concerning (i)–(vi).
Some of the doctrines of his logic have become standard and unnoticed assumptions through their acceptance by Bertrand Russell, an acceptance which survived Russell's subsequent repudiation of idealist logic and metaphysics.
He continued to produce new lectures on the foundations and first principles of his system, as well as new introductory lectures on philosophy in general ("Logic and Philosophy" [1812] and "The Facts of Consciousness" [1813]), political philosophy ("System of the Doctrine of Right" [1812] and "Doctrine of the State" [1813]) and ethics ("System of Ethical Theory" [1812]).
In the 1980s, when the Campaign for Nuclear Disarmament was at its height, there was much talk about MAD, the fitting acronym for the military doctrine that provided the logic for nuclear deterrence: mutually assured destruction.
Avicenna's doctrine of secondary intelligibles assigns logic a subject matter whose essential properties the logician studies; this makes logic a science in the Aristotelian sense of the term.
At first dismissing Palamas' doctrine as contrary to Aristotelian logic and metaphysics, Nilus later came to favour Hesychast teaching.
