Re: Replacement of Cardinality

Am 28.08.2024 um 15:30 schrieb Python:

Le 28/08/2024 à 15:25, WM a écrit :

Gottlob Frege shared his opinion:

*Holy shit*!!! No, he didn't "share (t)his opinion".
This was a CRITICAL remark concerning one of Schröder's books and the theory expressed in this book

"If, according to our previous use of the word, a class consists of

things,

is a collection, a collective  union of them, then it must disappear

when

these things disappear. If  we burn down all the trees of a forest,

then

we burn down the forest. Thus an empty class cannot exist."
[G. Frege: "Kleine Schriften", I. Agelelli (ed.), 2nd ed., Olms,

Hildesheim (1990) p. 195]
OF COURSE, Frege's system had an empty "set" (Begriffsumfang). you (WM) fucking idiot full of shit!

Anyhow, "zero things" means "no things". So we can
safely say <bla bla bla>

Yeah, we can safely say:
        |{x : Fx}| = 0 <-> ~ExFx
Mückenheim, Du bist wirklich dümmer als die Polizei erlaubt!