History20th centuryPoland (Lwów, now Lviv, Ukraine)low confidence

The Scottish Café was a café in Lwów where mathematicians of the Lwów School of Mathematics recorded problems in a notebook known as the Scottish Book.

Notes on verification

Confirmed by multiple independent, high-quality sources including MacTutor History of Mathematics and Wikipedia articles on both the Scottish Café and the Scottish Book, all consistent in details. [tier=unverified indep_score=0.375 clusters=1 claim_tier=notable] [harvest 2026-09-15: +4 source(s) on new hosts; tier unverified->gold indep=0.97 clusters=5] [kind-backfill 2026-09-15: kind=empirical eligibility=high]

Sources