Consider a statement(adsbygoogle = window.adsbygoogle || []).push({});

A: Negation of A (~A) is true

Then,

~A: Negation of A is false

If A is true, that means that ~A is true too, but these can't be simultaneously true.

If A is false, ~~A is true, i.e. A is true. What is the problem?

**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!

# Logical confusion

Loading...

Similar Threads - Logical confusion | Date |
---|---|

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

B Empty domains and the vacuous truth | Dec 26, 2017 |

Confused about logical statements. | Jul 14, 2012 |

Logic confusion - formally clear but practically not so. | Sep 9, 2011 |

A confusion about truth table of logical implication | Jun 3, 2009 |

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