Corrigendum to "Groupoids, the Phragmen-Brouwer Property, and the Jordan Curve Theorem", J. Homotopy and Related Structures 1 (2006) 175-183
arXiv:1404.0556
Abstract
Omar Antol{\'ı}n Camarena pointed out a gap in the proofs in \cite{Brown15,BrownJordan} of a condition for the Phragmen--Brouwer Property not to hold; this note gives the correction in terms of a result on a pushout of groupoids, and some additional background.
arXiv comment6 pages, 1 figure, submitted to JHRS. v2 small corrections v2: 4 pages