Combining Texts

All the ideas for 'Principles of Theoretical Logic', 'fragments/reports' and '21: First Epistle of Peter'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

4. Formal Logic / C. Predicate Calculus PC / 1. Predicate Calculus PC

17750

The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / c. Ultimate substances

1497	For Anaximenes nature is air, which takes different forms by rarefaction and condensation [Anaximenes, by Simplicius]

29. Religion / D. Religious Issues / 1. Religious Commitment / e. Fideism

17593

Always be ready to give reasons for your beliefs [Peter]