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Single Idea 19463

[filed under theme 2. Reason / F. Fallacies / 1. Fallacy ]

Full Idea

In all inductive reasoning we make the assumption that there is a measure of uniformity in nature; or, roughly speaking, that the future will, in the appropriate respects, resemble the past.

Gist of Idea

Induction assumes some uniformity in nature, or that in some respects the future is like the past

Source

A.J. Ayer (The Problem of Knowledge [1956], 2.viii)

Book Ref

Ayer,A.J.: 'The Problem of Knowledge' [Penguin 1966], p.7


A Reaction

I would say that nature is 'stable'. Nature changes, so a global assumption of total uniformity is daft. Do we need some global uniformity assumptions, if the induction involved is local? I would say yes. Are all inductions conditional on this?


The 6 ideas from 'The Problem of Knowledge'

Knowing I exist reveals nothing at all about my nature [Ayer]
To say 'I am not thinking' must be false, but it might have been true, so it isn't self-contradictory [Ayer]
'I know I exist' has no counterevidence, so it may be meaningless [Ayer]
We only discard a hypothesis after one failure if it appears likely to keep on failing [Ayer]
Induction passes from particular facts to other particulars, or to general laws, non-deductively [Ayer]
Induction assumes some uniformity in nature, or that in some respects the future is like the past [Ayer]