See attachment for the question.(adsbygoogle = window.adsbygoogle || []).push({});

----------------

∀x ∈ D, if P(x) then Q(x). this means ∀x P(x) -> Q(x).

all you have to do is find a value for x

∀x this means for ALL x right

so you can choose ANY element

but for the E its only things in the domain

so all you have to do is choose an x that's not in E's domain

and then you can say therefore its not logically equivalent.

I think am wrong.

----------------

Please help me out with this problem.

thank you in advance.

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

Join Physics Forums Today!

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

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

# Discrete Math. (Logically equivalent)

Loading...

Similar Threads - Discrete Math Logically | Date |
---|---|

Broken Stick Math Discussion | Nov 13, 2017 |

I What's The Discrete Math Derivative Equivalent? | Apr 2, 2016 |

Negation for proposition | Jan 17, 2016 |

Discrete Math - quick probability questions. | Dec 6, 2015 |

Advice request good study stats along discrete math | Nov 14, 2015 |

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