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Single Idea 5528

[filed under theme 12. Knowledge Sources / A. A Priori Knowledge / 5. A Priori Synthetic ]

Full Idea

In the proposition that in all communication of motion effect and counter-effect must always be equal, not only the necessity, and thus its a priori origin, but also that it is a synthetic proposition is clear.

Gist of Idea

That force and counter-force are equal is necessary, and a priori synthetic

Source

Immanuel Kant (Critique of Pure Reason [1781], B017)

Book Ref

Kant,Immanuel: 'Critique of Pure Reason', ed/tr. Guyer,P /Wood,A W [CUO 1998], p.145

A Reaction

No, I don't follow that. God might have made Newton's Third Law that every time you push a wall it pushes you back with double force. Looks like a Humean a posteriori observation of regularity to me.

The 26 ideas with the same theme [a priori knowledge which refers to the external world]:

3342 Seeing that only one parallel can be drawn to a line through a given point is clearly synthetic a priori [Kant, by Benardete,JA]
20943 Kant bases the synthetic a priori on the categories of oneness and manyness [Kant, by Bowie]
5402 Kant showed that we have a priori knowledge which is not purely analytic [Kant, by Russell]
5203 We can think of 7 and 5 without 12, but it is still a contradiction to deny 7+5=12 [Ayer on Kant]
5527 That a straight line is the shortest is synthetic, as straight does not imply any quantity [Kant]
5528 That force and counter-force are equal is necessary, and a priori synthetic [Kant]
5529 The real problem of pure reason is: how are a priori synthetic judgments possible? [Kant]
5537 That two lines cannot enclose a space is an intuitive a priori synthetic proposition [Kant]
5546 Are a priori concepts necessary as a precondition for something to be an object? [Kant]
5558 7+5=12 is not analytic, because 12 is not contained in 7 or 5 or their combination [Kant]
5624 We possess synthetic a priori knowledge in our principles which anticipate experience [Kant]
3726 The categorical imperative is a practical synthetic a priori proposition [Kant]
16916 A priori synthetic knowledge is only of appearances, not of things in themselves [Kant]
9225 Hegel reputedly claimed to know a priori that there are five planets [Hegel, by Field,H]
23500 My main problem is the order of the world, and whether it is knowable a priori [Wittgenstein]
23479 The Tractatus aims to reveal the necessities, without appealing to synthetic a priori truths [Wittgenstein, by Morris,M]
23501 There is no a priori order of things [Wittgenstein]
2619 Whether geometry can be applied to reality is an empirical question outside of geometry [Ayer]
2513 We don't have a clear enough sense of meaning to pronounce some sentences meaningless or just analytic [Katz]
2794 Knowing that a cow is not a horse seems to be a synthetic a priori truth [Dancy,J]
3341 Logical positivism amounts to no more than 'there is no synthetic a priori' [Benardete,JA]
3344 Assertions about existence beyond experience can only be a priori synthetic [Benardete,JA]
3345 Appeals to intuition seem to imply synthetic a priori knowledge [Benardete,JA]
3349 If we know truths about prime numbers, we seem to have synthetic a priori knowledge of Platonic objects [Benardete,JA]
3887 Maybe our knowledge of truth and causation is synthetic a priori [Scruton]
3876 If my team is losing 3-1, I have synthetic a priori knowledge that they need two goals for a draw [PG]