We mechanise the logic TLA∗ [8], an extension of Lamport’s Temporal Logic of Actions (TLA) [5] for specifying and reasoning about concurrent and reactive systems. Aiming at a framework for mechanising the verification of TLA (or TLA∗) specifications, this contribution reuses some elements from a previous axiomatic encoding of TLA in Isabelle/HOL by the second author [7], which has been part of ...

We describe the Temporal Logic of Actions (TLA) from a logical perspective. After giving the syntax and semantics of TLA, we discuss some methods for representing reactive systems in TLA and study veriication rules. 1 The L in TLA The Temporal Logic of Actions (TLA) is a variant of temporal logic, designed for the speciication and veriication of reactive systems in terms of their actions. In th...

TLA+ is a formal specification language that is based on Zermelo-Fränkel set theory and the Temporal Logic of Actions TLA. The TLA+ proof system TLAPS assists users in deductively verifying safety properties of TLA+ specifications. TLAPS is built around a proof manager, which interprets the TLA+ proof language, generates corresponding proof obligations, and passes them to backend verifiers. In ...

TLA is a specification language for concurrent and reactive systems that combines the temporal logic TLA with full first-order logic and ZF set theory. TLC is a new model checker for debugging a TLA specification by checking invariance properties of a finite-state model of the specification. It accepts a subclass of TLA specifications that should include most descriptions of real system designs...

Opisani su čimbenici postanka i razvoja tla petrinjskog glinskog kraja, uključujući geološko litološku podlogu, klimu, vegetaciju, ljudske aktivnosti, elementarne nepogode ratne štete na poljoprivrednom zemljištu. Tekstom pedološkoj karti navedeni opisani tipovi niže pedosistematske jedinice poljoprivrednog zemljišta. Procijenjena je sadašnja pogodnost tla/zemljišta za obradu. Za utvrđene vrste...

Despite the abundance of research on ELT teachers, little is known about teacher language awareness (TLA) with focus on its impact on pedagogical practice in the EFL context. To fill this gap, an in-depth study was conducted to examine the procedural dimension of TLA among eight EFL teachers with different teaching experiences (novice versus experienced) related to teaching grammar at Iranian l...

The Qa and Tla regions of the mouse major histocompatibility complex contain a series of genes encoding proteins with structural similarity to the class I transplantation antigens of the same complex. In contrast to the genes encoding the transplantation antigens, the Qa and Tla genes show very little polymorphism. Function(s) of the proteins encoded by the Qa and Tla loci remain an enigma. Rec...

We have determined the DNA sequence of a gene encoding a thymus leukemia (TL) antigen in the BALB/c mouse, and have more definitively mapped the cloned BALB/c Tla-region class I gene clusters. Analysis of the sequence shows that the Tla gene is less closely related to the H-2 genes than H-2 genes are to one another or to a Qa-2,3-region genes. The Tla gene, 17.3A, contains an apparent gene conv...

We compared the sensitivity and time to detection of growth of Mycobacterium tuberculosis in the thin layer agar (TLA) compared to BACTEC MGIT960. The average time for growth of M. tuberculosis in TLA and BACTEC MGIT960 was 10.6 and 9.6 days, respectively. The sensitivity of detection of M. tuberculosis was 97.3% on TLA and 97% on BACTEC MGIT960 for smear positive samples. TLA showed comparable...