A Modern Interpretation of Classic Logic(adsbygoogle = window.adsbygoogle || []).push({});

Basic definitions.

Definition of Truth: "x" is true if and only if x.

Laws of Classic Logic:

Law of identity: x = x

Law of contradiction: Nothing is both true and not true.

Law of excluded middle: Everything is either true or not true.

Im not sure that the interpretation is complete and correct in all details

since its difficult to find any system of classic logic to compare it with.

Originally Logic was conceived as the Laws of Thought,

that is why I try to resurrect the system...

Other Modern Logics are only the Laws of certain Artificial Languages!

The reason for abandoning Classic Logis was Paradoxes,

it was for instance claimed by Alfred Tarski that natural languages are inconsistent

because The Liar Paradox could be derived in them!

Let us assume that Sentence 1 is a properly defined sentence:

1 Sentence 1 is not true.

Then you should be able to derive the Liar paradox from it...

But I intend to show why and how your deduction is incorrect if you do ;)

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Modern Classic Logic

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

Loading...

Similar Threads - Modern Classic Logic | Date |
---|---|

B Conditional Probability, Independence, and Dependence | Dec 29, 2017 |

Computability in Classical Physics | Oct 24, 2015 |

Classic model relation versus the Kripke model relation | Mar 29, 2015 |

Modern applications of 'division of stakes' theorem ? | Nov 25, 2012 |

Difference between Bayesian & Modern Probability | Aug 20, 2012 |

**Physics Forums - The Fusion of Science and Community**