Content of CMUC 21 (1980), No.3
- Godini G.
- On minimal points. Comment.Math.Univ.Carolinae 21(1980) 407--419.
- Murphy G.J., West T.T.
- Removing the interior of the spectrum. Comment.Math.Univ.Carolinae 21(1980) 421--431.
- Čuda K.
- An elimination of infinitely small quantities and infinitely large numbers (within the framework of AST). Comment.Math.Univ.Carolinae 21(1980) 433--445.
- Drbohlav K.
- Remarks on tolerance semigroups. Comment.Math.Univ.Carolinae 21(1980) 447--456.
- Demuth O.
- O konstruktivnom analoge teoremy K.M. Garga o proizvodnych čislach. Comment.Math.Univ.Carolinae 21(1980) 457--472.
- Slavík V.
- The amalgamation property of varieties determined by primitive lattices. Comment.Math.Univ.Carolinae 21(1980) 473--478.
- Kepka T.
- A note on associative triples of elements in cancellation groupoids. Comment.Math.Univ.Carolinae 21(1980) 479--487.
- Demuth O.
- O psevdodifferenciruemosti konstruktivnych funkcij na konstruktivnych dejstvitel'nych čislach. Comment.Math.Univ.Carolinae 21(1980) 489--505.
- Douwen E.K. van
- Nonsupercompactness and the reduced measure algebra. Comment.Math.Univ.Carolinae 21(1980) 507--512.
- Abts D.
- On injective holomorphic Fredholm mappings of index $0$ in complex Banach spaces. Comment.Math.Univ.Carolinae 21(1980) 513--525.
- Frolík Z.
- Luzin sets are additive. Comment.Math.Univ.Carolinae 21(1980) 527--533.
- Bair J., Vangeldere J.
- Equivalences concernant la séparation de plusieurs c\^ones convexes. Comment.Math.Univ.Carolinae 21(1980) 535--549.
- Deaibes A.
- Mesures uniformes maximales. Comment.Math.Univ.Carolinae 21(1980) 551--562.
- Hahn S.
- Homöomorphieaussagen für $k$-verdichtende Vektorfelder. Comment.Math.Univ.Carolinae 21(1980) 563--572.
- Adámek J., Koubek V.
- Cartesian closed functor-structured categories. Comment.Math.Univ.Carolinae 21(1980) 573--590.
- Steudel R.
- Zur eindeutigen Lösbarkeit eines nichtlinearen Operatordifferentialgleichungssystems. Comment.Math.Univ.Carolinae 21(1980) 591--604.
- Steudel R.
- Mathematische Behandlung eines Desorptionsmodells für biporöse Systeme. Comment.Math.Univ.Carolinae 21(1980) 605--618.
- Reich S., Torrejón R.
- Zeros of accretive operators. Comment.Math.Univ.Carolinae 21(1980) 619--625.