Where is Pierce's arrow? — Preceding unsigned comment added by Нимтар ( talk • contribs) 13:29, 15 August 2017 (UTC) reply

Only at List of logic symbols#Advanced and rarely used logical symbols. " Common logical symbols" in the heading links to that article. I'm not sure it belongs in the short list of common logical symbols. PrimeHunter ( talk) 21:49, 15 August 2017 (UTC) reply