A List of Successes That Can Change the World: Essays by Sam Lindley, Conor McBride, Phil Trinder, Don Sannella

By Sam Lindley, Conor McBride, Phil Trinder, Don Sannella

This quantity is released in Honor of Philip Wadler at the social gathering of his sixtieth birthday, and the gathering of papers shape a Festschrift for him. The contributions are made by way of a number of the many that be aware of Phil and feature been encouraged by way of him. The examine papers incorporated the following symbolize a few of the components within which Phil has been lively, and the editors thank their colleagues for agreeing to give a contribution to this Festschrift. we strive to summarize Phil Wadler's clinical achievements. moreover, we describe the non-public variety and exuberance that Phil has dropped at the subject.

Show description

Read or Download A List of Successes That Can Change the World: Essays Dedicated to Philip Wadler on the Occasion of His 60th Birthday PDF

Best compilers books

Quantifiers in Action: Generalized Quantification in Query, Logical and Natural Languages

The database is a multi-billion, world-wide, all-encompassing a part of the software program global. Quantifiers in motion: Generalized Quantification in question, Logical and average Languages introduces a question language referred to as GQs—Generalized Quantification in question. so much question languages are easily types of First Order good judgment (FOL).

Programming in Prolog

Initially released in 1981, this used to be the 1st textbook on programming within the Prolog language and remains to be the definitive introductory textual content on Prolog. even though many Prolog textbooks were released on account that, this one has withstood the try out of time as a result of its comprehensiveness, instructional process, and emphasis on common programming functions.

HL7 for BizTalk

HL7 for BizTalk offers an in depth consultant to the making plans and supply of a HL7-compliant process utilizing the committed Microsoft BizTalk for HL7 Accelerator. The HL7 basic average, its a variety of models, and using the HL7 Accelerator for BizTalk are damaged out and completely defined. HL7 for BizTalk offers transparent suggestions at the particular healthcare situations that HL7 is designed to beat and offers operating case examine versions of the way HL7 strategies will be applied in BizTalk, deployed in perform and monitored in the course of operation.

Computer Safety, Reliability, and Security: 35th International Conference, SAFECOMP 2016, Trondheim, Norway, September 21-23, 2016, Proceedings

This booklet constitutes the refereed complaints of the thirty fifth foreign convention on laptop protection, Reliability, and protection, SAFECOMP 2016, held in Trondheim, Norway, in September 2016. The 24 revised complete papers provided have been rigorously reviewed and chosen from seventy one submissions. The papers are equipped in topical sections on fault injection, security coverage, formal verification, automobile, anomaly detection and resilience, cyber protection, fault bushes, and protection research.

Extra info for A List of Successes That Can Change the World: Essays Dedicated to Philip Wadler on the Occasion of His 60th Birthday

Example text

S1 B , sp 2 :: A S2 B , if sp 1 ≡b sp 2 ♦ Proof. right. This result is surprising because the two equivalences come from rather different perspectives. Johnson and Rosebrugh introduced a form of span equivalence, and showed that it implies bisimulation equivalence. They did not explicitly address the question of whether this implication is strict. However, there Reflections on Monadic Lenses 17 are some differences between their presentation and ours; the most important difference is the fact that we assume lenses to be equipped with a create function, while they consider lenses without create functions but sometimes consider spans of lenses to be “pointed”, or equipped with designated initial state values.

A bisimulation of M -lens spans sp 1 :: [A S1 B ]M and sp 2 :: [A S2 B ]M is a M -lens span B ]M where R ⊆ S1 × S2 and fst is a base map from sp to sp 1 sp :: [A R and snd is a base map from sp to sp 2 . We write sp 1 ≡b sp 2 when there is a ♦ bisimulation of spans sp 1 and sp 2 . Figure 2 illustrates the three equivalences diagrammatically. 7. Each of the relations ≡i , ≡s and ≡b are equivalence relations on compatible spans of M -lenses and satisfy (Identity), (Assoc) and (Cong). 8. sp1 ≡i sp2 implies sp1 ≡s sp2 , but not the converse.

Instead, we construct the appropriate span as follows. mget (s2 )}. In the absence of dependent types, we represent this type as (S1 , S2 ) in Haskell, and we need to check that the mput and mcreate operations respect the consistency invariant. 8. If ml 1 :: [S1 B ]M and ml 2 :: [S2 S2 ]μ . so is ml 1 ml 2 :: [S1 (S1 S2 ) B ]M are well-behaved then ♦ Note that (MPutGet) and (MCreateGet) hold by construction and do not need the corresponding properties for l1 and l2 , but these properties are needed to show that consistency is established by mcreate and preserved by mput.

Download PDF sample

Rated 4.25 of 5 – based on 33 votes