## Philosophy Lexicon of Arguments | |||

One, number 1: in modern logic it is not possible to introduce the number one directly. It must be introduced indirectly, via existential quantification ("for at least one x ...") and universal quantification ("for all x ..."). In addition, identity is needed. See also definition, identity, logic, elementary logic, number theory, numbers. | |||

Author | Item | Excerpt | Meta data |
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Books on Amazon |
Berka I 56 Def "identical one" / 1/Schröder/Berka: "1 we call an area to which each area a is in the relation of classification, in which each area of the manifold is contained - (s) >" universe "? |
Brk I K. Berka/L. Kreiser Logik Texte Berlin 1983 |

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Ed. Martin Schulz, access date 2017-05-28