“ It is clear that the logical product of two elementary propositions can neither be a tautology nor a contradiction. The assertion that a point in the visual field has two different colours at the same time, is a contradiction. ”
Ludwig Wittgenstein, Tractatus Logico-Philosophicus (1921). copy citation
| Author | Ludwig Wittgenstein |
|---|---|
| Source | Tractatus Logico-Philosophicus |
| Topic | contradiction tautology |
| Date | 1921 |
| Language | English |
| Reference | |
| Note | Translated by C. K. Ogden |
| Weblink | http://www.gutenberg.org/files/5740/5740-pdf.pdf |
Context
“Somewhat as follows: That a particle cannot at the same time have two velocities, i.e. that at the same time it cannot be in two places, i.e. that particles in different places at the same time cannot be identical. It is clear that the logical product of two elementary propositions can neither be a tautology nor a contradiction. The assertion that a point in the visual field has two different colours at the same time, is a contradiction. 6.4 OGD [→GER | →P/M ] All propositions are of equal value. 6.41 OGD [→GER | →P/M ] The sense of the world must lie outside the world. In the world everything is as it is and happens as it does happen.”
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