Axioms of intuition

A: Principle of pure understanding: All appearances are, in terms of their intuition, extensive magnitudes. [A162]

B: Their principle is: All intuitions are extensive magnitudes. [B202]

Anticipations of perception

A: The principle that anticipates all perceptions, as such, reads thus: In all appearances sensation, as well as the real that corresponds to it in the object (realitas phaenomenon), has an intensive magnitude, i.e., a degree. [A166]

B: Their principle is: In all appearances the real that is an object of sensation has intensive magnitude, i.e., a degree. [B207]

Analogies of experience

A: Their general principle is this: All appearances are, as regards their existence, subject a priori to rules governing the determination of their relation to one another in one time. [A176–77]

B: Their principle is: Experience is possible only through the presentation of a necessary connection of perceptions. [B218]

First analogy

A: PRINCIPLE OF PERMANENCE—All appearances contain the permanent (i.e., substance) as the object itself, and the mutable as its mere determination, i.e., as a way in which the object exists. [A182]

B: PRINCIPLE OF THE PERMANENCE OF SUBSTANCE—In all variation by appearances substance is permanent, and its quantum in nature is neither increased nor decreased. [B224]

Second analogy

A: PRINCIPLE OF PRODUCTION—Everything that occurs (i.e., starts to be) presupposes something that it succeeds according to a rule. [A189]

B: PRINCIPLE OF TEMPORAL SUCCESSION ACCORDING TO THE LAW OF CAUSALITY—All changes occur according to the law of the connection of cause and effect. [B232]

Third analogy

A: PRINCIPLE OF COMMUNITY—All substances, insofar as they are simultaneous, stand in thoroughgoing community (i.e., interaction with one another). [A211]

B: PRINCIPLE OF SIMULTANEITY ACCORDING TO THE LAW OF INTERACTION OF COMMUNITY—All substances, insofar as they can be perceived in space as simultaneous, are in thoroughgoing interaction. [B256]

The postulates of empirical thought as such

1. What agrees (in terms of intuition and concepts) with the formal conditions of experience is possible.

2. What coheres with the material conditions of experience (with sensation) is actual.

3. That whose coherence with the actual is determined according to universal conditions of experience is necessary (exists necessarily). [A218/B265–66]