Examlex
Either the painting is a forgery, or it's worth a small fortune. Therefore, the painting is worth a small fortune, since it's not a forgery.
Rubik's Cube
A 3D combination puzzle invented by Ernő Rubik in 1974, consisting of a cube with each of its six faces covered by nine stickers, each of one of six solid colors.
Law of Effect
A principle stating that behaviors followed by satisfying consequences are more likely to be repeated, while those followed by unsatisfying consequences are less likely to be repeated.
Reinforcement
In behavioral psychology, a process by which a behavior is strengthened or increased by its consequences.
Positive Reinforcement
A method of behavior modification that involves rewarding a desired behavior in order to increase the likelihood of it occurring again.
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