1981/08/01 by Ronald Brown, Philip J. Higgins · 1 citation
Decision Sciences · Mathematics · #Algebra over a field #Algebraic structures and combinatorial models #Equivalence (formal languages) #Fuzzy and Soft Set Theory #Homotopy #Homotopy and Cohomology in Algebraic Topology #Lemma (botany) #Mathematics #Pure mathematics
paper · doi:10.1016/0022-4049(81)90080-3
crossref issued 1981/08/01 · crossref published 1981/08/01 · crossref published-print 1981/08/01 · openalex publication_date 1981/08/01 · crossref created 2002/07/25 · crossref deposited 2019/04/12 · openalex created_date 2025/10/10 · crossref indexed 2025/12/17 · openalex updated_date 2026/07/23