Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Fixed Points of Type Constructors and Primitive Recursion (Errata)
 

Summary: Fixed Points of Type Constructors
and Primitive Recursion (Errata)
Andreas Abel and Ralph Matthes
October 19, 2004
Abstract
Our contribution to CSL 04 [AM04] contains a little error, which is easily corrected by 2 elementary
editing steps (replacing one character and deleting another).
Definition of wellformed contexts (fifth page). Typing contexts should, in contrast to kinding con-
texts, only contain type variable declarations without variance information. Hence, the second rule is too
liberal; we must insist on p = . The corrected set of rules is then:
cxt
cxt
, X cxt
cxt A :
, x:A cxt
Definition of welltyped terms (immediately following). Since wellformed typing contexts contain
no variance information, hence = , we might drop the "" in the instantiation rule (fifth rule). The
new set of rules is consequently,
(x:A) cxt
x : A

  

Source: Abel, Andreas - Theoretische Informatik, Ludwig-Maximilians-Universit√§t M√ľnchen

 

Collections: Computer Technologies and Information Sciences