For example, such components might act additively or multiplicatively. We will write "G" multiplicatively and "M" additively. In other words, do people process group members identities cumulatively/additively? However, there are examples of symmetric additively separable hedonic games that have empty core. The below functional forms assume that utility from consumption is time additively separable. Two beams of light that are superimposed mix their colors additively. Kleene algebras are additively idempotent but not all quasi-regular semirings are so. Cohen's method is not even additively homomorphic, however. The natural logarithm formula 17 scales additively and so is not homogeneous. These factors act additively or independently, ultimately affecting positioning and physical development of the tooth. The dimension is extended additively to direct sums of irreducible bimodules. This quasi-regular semiring is not additively idempotent however, so it is not a Kleene algebra. The homomorphism is surjective, since the Pfister forms additively generate "I". Parts are built up additively layer by layer, typically using layers 20 micrometers thick. Likely several approaches could be combined to additively increase yield.