Prague, Czech Republic

Logic

Logika

Language: Czech Studies in Czech
Subject area: humanities
University website: www.cuni.cz
Years of study: 4
Logic
Logic (from the Ancient Greek: λογική, translit. logikḗ), originally meaning "the word" or "what is spoken", but coming to mean "thought" or "reason", is a subject concerned with the most general laws of truth, and is now generally held to consist of the systematic study of the form of valid inference. A valid inference is one where there is a specific relation of logical support between the assumptions of the inference and its conclusion. (In ordinary discourse, inferences may be signified by words like therefore, hence, ergo, and so on.)
Logic
Logical analysis applied to mental phenomenon shows that there is but one law of mind, namely that ideas tend to spread continuously and to affect certain others which stand to them in a peculiar relation of affectibility. In this spreading they lose intensity, and especially the power of affecting others, but gain generality and become welded with other ideas.
Charles Sanders Peirce (1892) The Law of Mind.
Logic
Logic hasn't wholly dispelled the society of witches and prophets and sorcerers and soothsayers.
Raymond F. Jones (2012), The Non-Statistical Man
Logic
The want of logic annoys. Too much logic bores. Life eludes logic, and everything that logic alone constructs remains artificial and forced.
André Gide (1956) The journals, 1889-1949. Vol 2. p. 20
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