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1. Matematiğin ilk temelleri

1.1. Matematiğin temellerine giriş
1.2. Değişkenler, kümeler, işlevler ve işlemler

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Thanks Işık Barış Fidaner for the translation.
This corresponds to just the beginning of a course first written :

• first in English,
• then in French,

which was improved since then. I don't have someone anymore to update and expand the Turkish version. If you can help, even just a little, please write me (trustforum at gmail.com). Thanks !