Degrees of extensionality in the theory of B\"ohm trees and Sall\'e's conjecture
The main observational equivalences of the untyped lambda-calculus have been characterized in terms of extensional equalities between B\"ohm trees. It is well known that the lambda-theory H*, arising by taking as observables the head normal forms, equates two lambda-terms whenever their B\"...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Logical Methods in Computer Science e.V.
2019-01-01
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Series: | Logical Methods in Computer Science |
Subjects: | |
Online Access: | https://lmcs.episciences.org/4305/pdf |