The Notre Dame Journal of Formal Logic provides a forum where researchers working in all areas of logic and the foundations of mathematics can read and publish original and significant work.

### Volume 22, Number 2

#### Publication Date: April 1981

Miscellaneous front pages, Notre Dame Journal of Formal Logic, volume 22, issue 2 (1981)

Relevance: a fallacy?

John P. Burgess; 97-104

On the number of generators of an ideal.

Thomas Jech; 105-108

A more satisfactory description of the semantics of justification.

John T. Kearns; 109-119

Automorphisms of $\omega$-cubes.

J. C. E. Dekker; 120-128

Robert Brandom; 129-132

Cofinal extensions of nonstandard models of arithmetic.

C. Smoryński; 133-144

Anderson's deontic logic and relevant implication.

Robert P. McArthur; 145-154

Forking in modules.

Steven Garavaglia; 155-162

Material implication in orthomodular (and Boolean) lattices.

Gary M. Hardegree; 163-182

Does IPC have a binary indigenous Sheffer function?

Herbert E. Hendry; 183-186

${\rm RMLC}$: solution to a problem left open by Lemmon.

Dolph Ulrich; 187-189

Miscellaneous back pages, Notre Dame Journal of Formal Logic, volume 22, issue 2 (1981)