User talk:Robert Peetsalu

Welcome!
Hello, Robert Peetsalu, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few links to pages you might find helpful:


 * Introduction and Getting started
 * Contributing to Wikipedia
 * The five pillars of Wikipedia
 * How to edit a page and How to develop articles
 * How to create your first article
 * Simplified Manual of Style

You may also want to complete the Wikipedia Adventure, an interactive tour that will help you learn the basics of editing Wikipedia. You can visit the Teahouse to ask questions or seek help.

Please remember to sign your messages on talk pages by typing four tildes ( ~ ); this will automatically insert your username and the date. If you need help, check out Questions, ask me on my talk page, or, and a volunteer should respond shortly. Again, welcome! RJFJR (talk) 16:30, 19 April 2018 (UTC)

Welcome to The Wikipedia Adventure!

 * Hi Robert Peetsalu! We're so happy you wanted to play to learn, as a friendly and fun way to get into our community and mission.  I think these links might be helpful to you as you get started.
 * The Wikipedia Adventure Start Page
 * The Wikipedia Adventure Lounge
 * The Teahouse new editor help space
 * Wikipedia Help pages

-- 19:10, Sunday, April 22, 2018 (UTC)

Welcome to The Wikipedia Adventure!

 * Hi Robert Peetsalu! We're so happy you wanted to play to learn, as a friendly and fun way to get into our community and mission.  I think these links might be helpful to you as you get started.
 * The Wikipedia Adventure Start Page
 * The Wikipedia Adventure Lounge
 * The Teahouse new editor help space
 * Wikipedia Help pages

-- 19:11, Sunday, April 22, 2018 (UTC)

Welcome to The Wikipedia Adventure!

 * Hi Robert Peetsalu! We're so happy you wanted to play to learn, as a friendly and fun way to get into our community and mission.  I think these links might be helpful to you as you get started.
 * The Wikipedia Adventure Start Page
 * The Wikipedia Adventure Lounge
 * The Teahouse new editor help space
 * Wikipedia Help pages

-- 08:36, Wednesday, April 25, 2018 (UTC)

-al in hierarchies
Welcome to Wikipedia! In the literature, it is very common to see "arithemtical hierarchy", "analytical hierarchy", and "hyperarithmetical hierarchy" - e.g. in Soare's book or Rogers' book. I don't think there is any strong reason based on the literature to remove the -al, as long as an existing article is consistent about its usage. And the titles of our articles all seem to have the "-al" in them. The talk page of the article can be used to explain if there is a strong reason for the change. &mdash; Carl (CBM · talk) 20:20, 24 May 2018 (UTC)