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Certainty (also known as epistemic certainty or objective certainty) is the epistemic property of beliefs which a person has no rational grounds for doubting. [1] One standard way of defining epistemic certainty is that a belief is certain if and only if the person holding that belief could not be mistaken in holding that belief.
Whereas it can be understood as an equivalent to "beyond reasonable doubt", in another sense, moral certainty refers to a firm conviction which does not correlate but rather opposes evidentiary certainty: [5] i.e. one may have a firm subjective gut feeling of guilt – a feeling of moral certainty – without the evidence necessarily justifying ...
Opposed to probabilism is probabiliorism (Latin probabilior, "more likely"), which holds that when there is a preponderance of evidence on one side of a controversy one is obliged to follow that side, and tutiorism (Latin tutior, "safer"), which holds that in case of doubt one must take the morally safer side. A more radical view, "minus ...
Certainty, by contrast, is a strong affirmative conviction, meaning that the person is free of doubt that the proposition is true. In epistemology, doubt and certainty play central roles in attempts to find a secure foundation of all knowledge and in skeptical projects aiming to establish that no belief is immune to doubt. [99]
Probability is the branch of mathematics and statistics concerning events and numerical descriptions of how likely they are to occur. The probability of an event is a number between 0 and 1; the larger the probability, the more likely an event is to occur. [note 1] [1] [2] A simple example is the tossing of a fair (unbiased) coin. Since the ...
Further to this notion of moral certainty, where the trier of fact relies on proof that is solely circumstantial, i.e., when conviction is based entirely on circumstantial evidence, certain jurisdictions specifically require the prosecution's burden of proof to be such that the facts proved must exclude to a moral certainty every reasonable ...
When the foundations of the opposing probabilities are not derived from the same source, then at least the opposing arguments do not detract from one another; and even when the two probabilities are based on a consideration of the same argument, one opinion will retain probability insofar as the opposing opinion recedes from certainty.
Justification (also called epistemic justification) is a property of beliefs that fulfill certain norms about what a person should believe. [1] [2] Epistemologists often identify justification as a component of knowledge distinguishing it from mere true opinion. [3]