## Philosophy Lexicon of Arguments | |||

Author | Item | Excerpt | Meta data |
---|---|---|---|

Wittgenstein, Ludwig Books on Amazon |
Mathematics | II 346 Mathematics/Wittgenstein: mathematical propositions are not true or false - but they show what is usefull and what useless. --- II 385 See/Mathematics/Wittgenstein: E.g. that four consists of two and two in the sense of 2 + 2 = 4, cannot be seen. - There is no phenomenon of seeing that a grammatical sentence applies. --- II 392 Calculate/Wittgenstein: that a calculation with different methods (for example, tally) leads to the same result, does not come from the nature of the process - from the processes follows no need. --- II 395 Decimal fraction/development/Wittgenstein: (> decimals): the discovered periodicity is no reason that someone needs to accept that it always has to go on like this. - but he must well accept if he is not a fool. - The fact that we have to acknowledge that in mathematics two methods lead to the same result, is not a fact of experience, but a rule. --- II 399 Evolution of the number π/Wittgenstein: question whether 3 sevens have to occur or do not have to occur - in fact there is no way to answer that. - It is weird that we can ask this question without knowing a means of discovering the answer. - ((s)> verificationism.) - Since π is our own creation, we could say that we have invented all the consequences. --- II 400 Mathematics/Name/Object/Wittgenstein: in mathematics, there is no such thing as the description of something on the one hand, and his name on the other. --- II 406 Sense/Mathematics/Wittgenstein: it is not that a mathematical proposition only makes sense if it was proven to be true or false, but first he must have sense, so that it can be true or false. --- II 409 Definition Fundamental Theorem of Algebra/Wittgenstein: every equation has a solution. |
W II L. Wittgenstein Vorlesungen 1930-35 Frankfurt 1989 W III L. Wittgenstein Das Blaue Buch - Eine Philosophische Betrachtung Frankfurt 1984 W IV L. Wittgenstein Tractatus Logico Philosophicus Frankfurt/M 1960 |

> Counter arguments against **Wittgenstein**

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Ed. Martin Schulz, access date 2017-03-25