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Modality/Possibility//Physics/Field: a prefixed modal operator would change the content of a physical law. - ((s) This goes beyond the purely logical case p > Mp).
Contents/Content/Field/(s): is not preserved, although arbitrary conflicting conclusions may be believed as well. - Requirement: separation into two components, one of which remains fixed. - E.g. physics/mathematics.
Belief State/Contents/Deflationism/Truth Conditions/Field: if belief can be described as the state of acceptance of the sentence "snow is white", it can be described: - a) as belief state that snow is white and - b) as a state with the truth conditions that snow is white - Point: the connection of that-sentences with truth conditions is loosened. - (VsFrege, VsRussell).
Realism, Mathematics and Modality Oxford New York 1989
Truth and the Absence of Fact Oxford New York 2001
Science without numbers Princeton New Jersey 1980