"Some box contains 11 or more balls."(adsbygoogle = window.adsbygoogle || []).push({});

My answer:

Not (some box contains 11 or more balls)

[tex]\equiv[/tex] (not some box contains 11) and (more balls) {by de Morgan}

[tex]\equiv[/tex] no box contains 11 and more balls

Is this correct?

**Physics Forums | Science Articles, Homework Help, Discussion**

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!

# Proposition Negation

**Physics Forums | Science Articles, Homework Help, Discussion**