17 ideas
17610 | The Axiom of Choice paradoxically allows decomposing a sphere into two identical spheres [Maddy] |
7548 | Classes, grouped by a convenient property, are logical constructions [Russell] |
17620 | Critics of if-thenism say that not all starting points, even consistent ones, are worth studying [Maddy] |
17605 | Hilbert's geometry and Dedekind's real numbers were role models for axiomatization [Maddy] |
17625 | If two mathematical themes coincide, that suggest a single deep truth [Maddy] |
17615 | Every infinite set of reals is either countable or of the same size as the full set of reals [Maddy] |
17618 | Set-theory tracks the contours of mathematical depth and fruitfulness [Maddy] |
17614 | The connection of arithmetic to perception has been idealised away in modern infinitary mathematics [Maddy] |
7545 | Visible things are physical and external, but only exist when viewed [Russell] |
16756 | Substantial forms must exist, to explain the stability of metals like silver and tin [Albertus Magnus] |
7553 | Sense-data are purely physical [Russell] |
7549 | If my body literally lost its mind, the object seen when I see a flash would still exist [Russell] |
7546 | A man is a succession of momentary men, bound by continuity and causation [Russell] |
7550 | We could probably, in principle, infer minds from brains, and brains from minds [Russell] |
7547 | Matter requires a division into time-corpuscles as well as space-corpuscles [Russell] |
7551 | Matter is a logical construction [Russell] |
7552 | Six dimensions are needed for a particular, three within its own space, and three to locate that space [Russell] |