Definition of "invariableness" [invariableness]

• The state of being invariable; constancy of state, condition, or quality; immutability; unchangeableness. (noun)

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• "The idea of causality, which implies the universal necessity of causation, cannot be educed from experience, since necessity (as opposed to mere invariableness) cannot be known by experience; it is therefore an original principle in the mind."
• "The universal idea possesses a fixity and invariableness of nature, whilst the sensuous image changes from moment to moment."
• "The reconciliation of the apparently contradictory facts of the invariableness of the object and the variableness of its appearance is only possible in a space of three dimensions, in which, owing to perspective distortions and changes, these variations of projection can be reconciled with the consistency of the form of a body."