The concept of probability – The probability of a single event – Pythagoreanism – Badiou’s ”Being and event” – Process philosophy – Logos and Number – Husserl on „Galilean mathematization“ – Three options about the notion of “probability” – Probability as a code – Phenomenological, transcendental, and eidetic reduction – Derrida in the trace of Trakl after Heidegger – What are numbers in Badiou? – The universe-computer – Quantum mechanics and relativity – Gibbsian and Boltzmannian statistics – Infinity and totality – Mach’s principle – Russell on mathematics – Linearity and cyclicity – Hilbert’s problems – Gentzen’s sequent calculus – Vicious or hermeneutical circle – The Kochen-Specker theorem – Nonadditivity – Truth – Episteme in the Nicomachean Ethics and in Foucault – Ramsey on probability mathematics of the real world is Hilbert or Gödel one? – Conclusions and the forthcoming