[DrPhysic]

Good thought.

My first thoughts are that any definition of deception must take into account at least two things: the effect over <font color="blue">time</font> of the action and it's effect in application of the <font color="blue">fundamental theorem</font>.

Quickie proposal (without sufficient thought):

Deception is any action in violation of the fundamental theorem of poker that has a +ev result due to a subsequent violation of the fundamental theorem of poker by the opponent caused by the disinformation presented by the original action or non-action.

That can probably be improved on, but I think it's pretty close.

Doc