User:Aleph4

Hi everybody.

I started editing Wikipedia in September 2003, and registered a few days later. As you can see from my list of contributions, I am mainly interested in mathematics, mainly mathematical logic.

What does my name mean? Why the hell is it 4? Well, nobody knows, actually...

If you want to leave me a message, please use my talk page.

(See also .)

it:Utente:Aleph4 nl:Gebruiker:Aleph4 sv:Användare:Aleph4