For the purposes of this Part--
(a) a
"gain" means gain in money or other property, whether temporary or permanent, and includes keeping what one has, and
"obtaining" a gain means obtaining a gain for oneself or for another, and
(b) a
"loss" means loss in money or other property, whether temporary or permanent, and includes not getting what one might get, and
"causing" a loss means causing a loss to another.