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Significance/Principle of significance/Peacocke: if we can imagine that an evidence supports a hypothesis, then this is not sufficient to show that the hypothesis is significant. - It could be that either the hypothesis or the evidence is independent of the other.
Principle of sensitivity: it is a priori and necessary that the thinker can on evidence* think for x the thought that x (shortened).
Constitutive Role: everything what meets the requirements of the principle of sensitivity.
Demonstrative/Peacocke: strong principle: ability to experience judgment is necessary for the possession of the term. - Weak Principle:
Identity/Regress/Peacocke: not all beliefs 'a is b' may be based on identification of a, otherwise regress - but also not on sufficient conditions for b - also regress.
Chr. R. Peacocke
Sense and Content Oxford 1983