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Predicates, definition

The mutually recursive definition of register values is well- founded because the control step parameter value is decreasing in a recursion and limited by control step value 0. As an example, we present the computation of the value of the register R1 in the R- R phase of control step 6 according to the register transfer model xrtm given in fig.2. We assume, that the transfer predicate definitions do not involve resource conflicts (illegal values). [Pg.298]

There are atomic transformation rules, such as unfolding (which mimics the execution mechanism of the target ImguagQ), folding (which performs the reverse transformation of unfolding), universal instantiation, abstraction, predicate definition, and various (possibly conditional) rewrite rules for the target language and the lemmas of the application domain. [Pg.18]

When a process is continuous, nucleation frequently occurs in the presence of a seeded solution by the combined effec ts of mechanical stimulus and nucleation caused by supersaturation (heterogeneous nucleation). If such a system is completely and uniformly mixed (i.e., the product stream represents the typical magma circulated within the system) and if the system is operating at steady state, the particle-size distribution has definite hmits which can be predic ted mathematically with a high degree of accuracy, as will be shown later in this section. [Pg.1656]

Then we create a recursive definition of the second predicate to test each variable individually ... [Pg.313]

Operationality criterion. A predicate over concept definitions, specifying the form in which the learned concept must be expressed. [Pg.316]

In choosing the definition of operationality, we are deciding the tradeoff between the number of predicates required to evaluate the condition versus the complexity of each predicate. This tradeoff further reduces to the cost of matching the facts to the predicates, versus the cost of evaluating a given match. If there are many different ways to match the facts to the predicates, but only one is successful, we will tend to have high match cost, unless we can find some ordering of the predicates, such that the unsuccessful ones are eliminated early. This topic has been the subject of much discussion see Minton et al. (1990) for details. [Pg.318]

Implicitly, we can express the fact that a predicate is operational by not including it on the right-hand side of an implication. In this case, it can never be further expanded or explained, and hence if it is not operational, we will fail to generate a satisfactory explanation. This definition makes it difficult to distinguish between the operationality of facts at one level of the branching structure versus another. [Pg.318]

More specifically, the basic notions of a Turing Machine, of computable functions and of undecidable properties are needed for Chapter VI (Decision Problems) the definitions of recursive, primitive recursive and partial recursive functions are helpful for Section F of Chapter IV and two of the proofs in Chapter VI. The basic facts regarding regular sets, context-free languages and pushdown store automata are helpful in Chapter VIII (Monadic Recursion Schemes) and in the proof of Theorem 3.14. For Chapter V (Correctness and Program Verification) it is useful to know the basic notation and ideas of the first order predicate calculus a highly abbreviated version of this material appears as Appendix A. [Pg.6]

Notice that if and P2 contain different function or test letters then strong equivalence between and implies a kind of degeneracy, in that certain functions and predicates are not really needed. We need a different type definition of equivalence to handle the case in which different schemes compute the same function under varying interpretations of the functions they do not have in common. [Pg.41]

Appendix A contains a brief summary of sane relevant ideas of satisfiability and validity of well-formed formulas in the predicate calculus. Using these ideas it gives a definition of partial and total correctness of a scheme with respect to a well-formed formula as output criterion. The treatment is cursory and nonrigorous. Readers who have not seen these ideas before should examine this appendix before we return to the treatment of correctness and program verification in Chapter V, and finally conclude this treatment in Chapjter VII. [Pg.46]

We now consider seme extensions of our definition, which depend on enlarging the definitions of functional terms and predicate terms. [Pg.129]

First let us extend the definition of recursion equation as we did the definition of WHILE scheme. Let a Boolean expression be any expression involving predicate terms P(t, ...,tm) where each is a terminal term (not necessarily a variable), and the connectives AND, OR, and NOT. We define a recursion expression inductively, by saying that first any term is a recursion expression, and then that any statement of the form IF Q THEN ELSE E2 is a recursion expression if Q is a Boolean predicate and E and E2 are recursion expressions. [Pg.229]

DEFINITION A recursion scheme is monadic if all its functions, basis, predicate and defined, are monadic. [Pg.231]

We have shown that in the monadic case one simple pushdown store suffices. Similar to this definition of the augmentation of a flowchart scheme by a simple pushdown store one can define a counter as a reserved variable u whose values can only be non-negative integers and to which can only be applied the functions u + 1 and u - 1 and the predicate u = 0. As in the case of an added pushdown store, all assignments to or by u must be independent variable - that is u f(v) and v + f(u) are forbidden for v u and any f. ... [Pg.300]

Although it is traditional in Marxian frameworks for capitalists to initiate the circulation of money with an advance of constant and variable capital, our previous discussion, in Chapter 4, showed that there are a number of ways in which the circulation of money can be modelled. In the single swap approach all of income is advanced in the Franco-Italian circuit approach only the wage bill is advanced in Nell s mutual exchange approach only wages in the capital goods sector are advanced. Our contribution has been to suggest, under the Kalecki principle (first introduced in Chapter 3), that capitalists advance an amount of money sufficient to realize their profits. This model is predicated on the definition of investment as accumulation of constant and variable capital. [Pg.97]

Provide a set of symbols, and associated definitions. This set of symbols will include both objects, and predicate relations. Together with the set of symbols defined by the associated logic, these will be the only allowed symbols. [Pg.194]

To summarize, the reactive flux method is a great help but it is predicated on a time scale separation, which results from the fact that the reaction time (1/T) is very long compared to all other times. This time scale separation is valid, only if the reduced barrier height is large. In this limit, the reactive flux method, the population decay method and the lowest nonzero eigenvalue of the Fokker-Planck equation all give the same result up to exponentially small corrections of the order of For small reduced barriers, there may be noticeable differences between the different definitions and as aheady mentioned each case must be handled with care. [Pg.9]

Mixtures and Compounds.—In the olden days, no distinction was drawn between a compound and a mixture. Indeed, all impure substances artificially prepared were termed mixts. It was only after the true idea of elements had been arrived at, and indeed not until Dalton had formulated the laws which go by his name, that the distinction was drawn. The ultimate criterion for combination is definiteness of proportion, and this is generally connected with uniformity in properties, or homogeneity. A substance is said to be homogeneous when no one part of it differs from any other part in composition. But this may be predicated of glass, or of air, which are mixtures, and not compounds. A mixture may be homogeneous a compound must. [Pg.1]

All of this preliminary material sets the stage for the crux of our present inquiry, What is obvious This is a key inquiry for patent law and one of the most crucial yet challenging concepts to understand because its meaning goes to the core of the definition of inventiveness. We have seen and reviewed novelty and should well understand its predicates. Unlike novelty, however, obviousness is a much more open-ended inquiry. Whereas novelty instructed us that we were limited to a single reference, obviousness can be based on information separately incorporated from... [Pg.203]

Compliance requirements from the predicate rule and 21 CFR Part 11 such as open or closed system definition, security and access configuration of the software application including user types, requirements for data integrity, time and date stamp requirements, and electronic signature requirements. [Pg.480]

The choice of the 2.3 °C offset in the temperature transformation was predicated on the assumption that the vertical temperature distribution was pinned at the lower end by North Atlantic Deep Water flow. Transforming and rearranging Equations (63) with the definitions in (65) gives... [Pg.3091]


See other pages where Predicates, definition is mentioned: [Pg.21]    [Pg.21]    [Pg.97]    [Pg.695]    [Pg.314]    [Pg.52]    [Pg.167]    [Pg.199]    [Pg.343]    [Pg.188]    [Pg.5]    [Pg.245]    [Pg.6]    [Pg.17]    [Pg.105]    [Pg.85]    [Pg.518]    [Pg.590]    [Pg.597]    [Pg.129]    [Pg.98]    [Pg.120]    [Pg.358]    [Pg.985]   
See also in sourсe #XX -- [ Pg.193 ]




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