| 19370 | 'Blind thought' is reasoning without recognition of the ingredients of the reasoning [Leibniz, by Arthur,R] |
| 16486 | The physical world doesn't need logic, but the mental world does [Russell] |
| 14452 | All the propositions of logic are completely general [Russell] |
| 10048 | There is no clear boundary between the logical and the non-logical [Tarski] |
| 11062 | Logic is a priori because it is impossible to think illogically [Wittgenstein] |
| 3746 | Logic seems to work for unasserted sentences [O'Connor] |
| 13845 | The various logics are abstractions made from terms like 'if...then' in English [Hacking] |
| 2442 | Inferences are surely part of the causal structure of the world [Fodor] |
| 15404 | Technical people see logic as any formal system that can be studied, not a study of argument validity [Burgess] |
| 14187 | If logic is topic-neutral that means it delves into all subjects, rather than having a pure subject matter [Read] |
| 10690 | Formal logic is invariant under permutations, or devoid of content, or gives the norms for thought [Beall/Restall] |
| 13232 | Logic studies arguments, not formal languages; this involves interpretations [Beall/Restall] |
| 22246 | A train of reasoning must be treated as all happening simultaneously [Recanati] |
| 10638 | A pure logic is wholly general, purely formal, and directly known [Linnebo] |
| 10781 | A 'pure logic' must be ontologically innocent, universal, and without presuppositions [Linnebo] |
| 11058 | Logic is explanatorily and ontologically dependent on rational animals [Hanna] |
| 11072 | Logic is personal and variable, but it has a universal core [Hanna] |
| 13850 | In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward] |