Hi, I'm just wondering this:(adsbygoogle = window.adsbygoogle || []).push({});

If A and B are subsets of the real numbers, is

inf A + inf B = inf(A+B)?

I've proved that

inf A + inf B <or= inf(A+B)?

I've tried the rest of the proof but it won't work. Is it even true?

**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!

# Sum of infs?

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