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An evidential (also verificational or validational) is the particular grammatical element (affix, clitic, or particle) that indicates evidentiality. Languages with only a single evidential have had terms such as mediative, médiatif, médiaphorique, and indirective used instead of evidential.
The relation between evidence and a supported statement can vary in strength, ranging from weak correlation to indisputable proof. Theories of the evidential relation examine the nature of this connection. Probabilistic approaches hold that something counts as evidence if it increases the probability of the supported statement.
In evidence law, physical evidence (also called real evidence or material evidence) is any material object that plays some role in the matter that gave rise to the litigation, introduced as evidence in a judicial proceeding (such as a trial) to prove a fact in issue based on the object's physical characteristics.
Evidential decision theory (EDT) is a school of thought within decision theory which states that, when a rational agent is confronted with a set of possible actions, one should select the action with the highest news value, that is, the action which would be indicative of the best outcome in expectation if one received the "news" that it had been taken.
An evidential burden compels a party to produce evidence in support of an issue it seeks to raise, failing which the party shall not be permitted to raise it at all. This burden can rest on either party, although it usually relates to matters of defence raised by the accused. Some defences impose an evidential burden on the defendant.
Evidentialism is a thesis in epistemology which states that one is justified to believe something if and only if that person has evidence which supports said belief. [1] Evidentialism is, therefore, a thesis about which beliefs are justified and which are not.
Conversely, evidential decision theory (EDT) would have recommended that the player takes only box B because taking only box B is strong evidence that the predictor anticipated that the player would only take box B, and therefore it is very likely that box B contains $1,000,000. Conversely, choosing to take both boxes is strong evidence that ...
Others work in the other direction, attempting to reduce epistemic modality to evidentiality. Still others recognize epistemic modality and evidentiality as two fundamentally separate categories, and posit that particular lexical items may have both an epistemic and an evidential component to their meanings.