Brunn-Minkowski Inequality
The 
th root of the Content of the set sum of two sets in Euclidean -space is greater than or equal to thesum of the th roots of the Contents of the individual sets.
References
Cover, T. M. ``The Entropy Power Inequality and the Brunn-Minkowski Inequality'' §5.10 in Open Problems in Communications and Computation. (Ed. T. M. Cover and B. Gopinath). New York: Springer-Verlag, p. 172, 1987. Schneider, R. Convex Bodies: The Brunn-Minkowski Theory. Cambridge, England: Cambridge University Press, 1993.
- Planted Planar Tree
- Plastic Constant
- Plat
- Plateau Curves
- Plateau's Laws
- Plateau's Problem
- Platonic Solid
- Plato's Number
- Platykurtic
- p-Layer
- Playfair's Axiom
- Plethysm
- Plot
- Plouffe's Constant
- Plumbing
- Pluperfect Number
- Plurisubharmonic Function
- Plus
- Plus or Minus
- Plus Perfect Number
- Plus Sign
- Plutarch Numbers
- Plücker Characteristics
- Plücker Relations
- Plücker's Conoid