Combining Texts

Ideas for 'Posthumous notes', 'The Principles of Mathematics' and 'The Unimportance of Identity'

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5 ideas

27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
Occupying a place and change are prior to motion, so motion is just occupying places at continuous times [Russell]
27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces
Force is supposed to cause acceleration, but acceleration is a mathematical fiction [Russell]
27. Natural Reality / C. Space-Time / 1. Space / c. Points in space
Space is the extension of 'point', and aggregates of points seem necessary for geometry [Russell]
27. Natural Reality / C. Space-Time / 3. Space-Time
Mathematicians don't distinguish between instants of time and points on a line [Russell]
27. Natural Reality / D. Cosmology / 1. Cosmology
The 'universe' can mean what exists now, what always has or will exist [Russell]