# Category Archives: Propositional Calculus

## Differential Propositional Calculus • Discussion 6

Re: Oeis | Differential Propositional Calculus • Part 1 • Part 2 • Appendices Re: Blog | Differential Propositional Calculus • Discussion • (3) • (4) • (5) HR: I think I like very much your Cactus Graphs.  Meaning that … Continue reading

## Differential Propositional Calculus • Discussion 5

Re: Peirce List • Helmut Raulien Re: Ontolog Forum • Mauro Bertani HR: I think I like very much your Cactus Graphs.  Meaning that I am in the process of understanding them, and finding it much better not to have … Continue reading

## Differential Propositional Calculus • Discussion 4

It is one of the rules of my system of general harmony, that the present is big with the future, and that he who sees all sees in that which is that which shall be. Leibniz • Theodicy Re: R.J. … Continue reading

## Differential Propositional Calculus • Discussion 3

That mathematics, in common with other art forms, can lead us beyond ordinary existence, and can show us something of the structure in which all creation hangs together, is no new idea.  But mathematical texts generally begin the story somewhere in … Continue reading

## Animated Logical Graphs • 66

Re: Richard J. Lipton • The Art Of Math Re: Animated Logical Graphs • (57) • (58) • (59) • (60) • (61) • (62) • (63) • (64) • (65) Once we bring the dual interpretations of logical graphs … Continue reading

## Animated Logical Graphs • 65

Thus, what looks to us like a sphere of scientific knowledge more accurately should be represented as the inside of a highly irregular and spiky object, like a pincushion or porcupine, with very sharp extensions in certain directions, and virtually … Continue reading

## Animated Logical Graphs • 64

If exegesis raised a hermeneutic problem, that is, a problem of interpretation, it is because every reading of a text always takes place within a community, a tradition, or a living current of thought, all of which display presuppositions and … Continue reading

## Animated Logical Graphs • 63

Re: Richard J. Lipton • The Art Of Math Re: Animated Logical Graphs • (57) • (58) • (59) • (60) • (61) • (62) We’ve been using the duality between entitative and existential interpretations of logical graphs to get … Continue reading

## Animated Logical Graphs • 62

Re: Richard J. Lipton • The Art Of Math Re: Animated Logical Graphs • (57) • (58) • (59) • (60) • (61) Another way of looking at the dual interpretation of logical graphs from a group-theoretic point of view … Continue reading

## Animated Logical Graphs • 61

Re: Richard J. Lipton • The Art Of Math Re: Animated Logical Graphs • (57) • (58) • (59) • (60) Anything called a duality is naturally associated with a transformation group of order 2, say a group acting on … Continue reading