49 ideas
3067 | A philosopher should have principles ready for understanding, like a surgeon with instruments [Aurelius] |
6319 | Wise people choose inaction and silence [Laozi (Lao Tzu)] |
6325 | One who knows does not speak; one who speaks does not know [Laozi (Lao Tzu)] |
6321 | Vulgar people are alert; I alone am muddled [Laozi (Lao Tzu)] |
22289 | Dedekind proved definition by recursion, and thus proved the basic laws of arithmetic [Dedekind, by Potter] |
10183 | An infinite set maps into its own proper subset [Dedekind, by Reck/Price] |
22288 | We have the idea of self, and an idea of that idea, and so on, so infinite ideas are available [Dedekind, by Potter] |
10706 | Dedekind originally thought more in terms of mereology than of sets [Dedekind, by Potter] |
9823 | Numbers are free creations of the human mind, to understand differences [Dedekind] |
10090 | Dedekind defined the integers, rationals and reals in terms of just the natural numbers [Dedekind, by George/Velleman] |
17452 | Ordinals can define cardinals, as the smallest ordinal that maps the set [Dedekind, by Heck] |
7524 | Order, not quantity, is central to defining numbers [Dedekind, by Monk] |
14131 | Dedekind's ordinals are just members of any progression whatever [Dedekind, by Russell] |
17611 | We want the essence of continuity, by showing its origin in arithmetic [Dedekind] |
10572 | A cut between rational numbers creates and defines an irrational number [Dedekind] |
14437 | Dedekind's axiom that his Cut must be filled has the advantages of theft over honest toil [Dedekind, by Russell] |
18094 | Dedekind says each cut matches a real; logicists say the cuts are the reals [Dedekind, by Bostock] |
18244 | I say the irrational is not the cut itself, but a new creation which corresponds to the cut [Dedekind] |
9824 | In counting we see the human ability to relate, correspond and represent [Dedekind] |
17612 | Arithmetic is just the consequence of counting, which is the successor operation [Dedekind] |
9826 | A system S is said to be infinite when it is similar to a proper part of itself [Dedekind] |
18087 | If x changes by less and less, it must approach a limit [Dedekind] |
13508 | Dedekind gives a base number which isn't a successor, then adds successors and induction [Dedekind, by Hart,WD] |
18096 | Zero is a member, and all successors; numbers are the intersection of sets satisfying this [Dedekind, by Bostock] |
18841 | Categoricity implies that Dedekind has characterised the numbers, because it has one domain [Rumfitt on Dedekind] |
14130 | Induction is proved in Dedekind, an axiom in Peano; the latter seems simpler and clearer [Dedekind, by Russell] |
8924 | Dedekind originated the structuralist conception of mathematics [Dedekind, by MacBride] |
9153 | Dedekindian abstraction talks of 'positions', where Cantorian abstraction talks of similar objects [Dedekind, by Fine,K] |
3072 | Everything is changing, including yourself and the whole universe [Aurelius] |
9825 | A thing is completely determined by all that can be thought concerning it [Dedekind] |
6328 | To know yet to think that one does not know is best [Laozi (Lao Tzu)] |
6323 | Pursuit of learning increases activity; the Way decreases it [Laozi (Lao Tzu)] |
9189 | Dedekind said numbers were abstracted from systems of objects, leaving only their position [Dedekind, by Dummett] |
9827 | We derive the natural numbers, by neglecting everything of a system except distinctness and order [Dedekind] |
9979 | Dedekind has a conception of abstraction which is not psychologistic [Dedekind, by Tait] |
6331 | Truth is not beautiful; beautiful speech is not truthful [Laozi (Lao Tzu)] |
3066 | Nothing is evil which is according to nature [Aurelius] |
6330 | One with no use for life is wiser than one who values it [Laozi (Lao Tzu)] |
6327 | Do good to him who has done you an injury [Laozi (Lao Tzu)] |
3071 | Justice has no virtue opposed to it, but pleasure has temperance opposed to it [Aurelius] |
23402 | The highest virtue is achieved without effort [Laozi (Lao Tzu)] |
3069 | The art of life is more like the wrestler's than the dancer's [Aurelius] |
6324 | To gain in goodness, treat as good those who are good, and those who are not [Laozi (Lao Tzu)] |
6322 | There is no crime greater than having too many desires [Laozi (Lao Tzu)] |
3065 | Humans are naturally made for co-operation [Aurelius] |
6320 | The best rulers are invisible, the next admired, the next feared, and the worst are exploited [Laozi (Lao Tzu)] |
6329 | People are hard to govern because authorities love to do things [Laozi (Lao Tzu)] |
6326 | The better known the law, the more criminals there are [Laozi (Lao Tzu)] |
23401 | A military victory is not a thing of beauty [Laozi (Lao Tzu)] |