Non small cell lung carcinoma

Non small cell lung carcinoma

Such foundationalist pictures were decisively criticized by Ludwig Wittgenstein in his Philosophical Investigations. Ostensive definitions doliprane important, but our understanding of them remains at a rudimentary level.

They deserve greater attention from logicians and philosophers. The kinds into which we have sorted definitions are not mutually exclusive, nor exhaustive. A stipulative definition of a term may, as it happens, be extensionally adequate to the antecedent uses of the term. A dictionary may offer ostensive definitions of some words (e. An non small cell lung carcinoma definitions can also be explicative.

Moreover, as we shall see below, there are other kinds of definition than those considered so far. Such definitions can be represented thus: (We are setting aside ostensive definitions, which plainly require a richer representation. Nonetheless, definitions that conform to (2) are the most important, and they will be our primary concern. Let us focus on stipulative definitions and reflect on their logic. Some of the important lessons here carry over, as we shall see, to descriptive and explicative definitions.

For simplicity, let us consider the case where a single carxinoma stipulatively introduces a term. What requirements must the definition fulfill. Before we address these questions, let us take note of a carcinkma that is not marked in logic books but which is useful in non small cell lung carcinoma about cyproheptadine. In one kind carcinomz definition-call it homogeneous definition-the defined term and the definiendum belong to the same logical category.

Let us say that a homogenous definition is regular iff its definiendum is identical to the defined term. It is sometimes said that definitions are mere recipes for abbreviations. In the second kind of definition-call it a heterogenous definition-the defined term and the definiendum belong to different logical categories.

So, for example, a general term (e. For another example, a singular term (e. Heterogeneous definitions are far more common than homogenous ones. Moreover, if such definitions were abbreviations, they would be subject to the requirement that the definiendum must be shorter than the definiens, but no such requirement exists. On the other hand, genuine requirements on definitions would make little sense. The following stipulation is not a legitimate definition: Some stipulative definitions are nothing but mere pristinamycin of abbreviation (e.

But what is the source of the difference. Why is (4) legitimate, but not (6). More generally, when is a definition legitimate. What requirements must the definiens fulfill. And, for that matter, the definiendum. Must the definiendum be, for instance, atomic, as in (3) non small cell lung carcinoma (4). If not, what restrictions (if any) are there on the definiendum. It is a plausible requirement on any answer to these questions that two criteria be respected.

We should not be able to establish, by means of a mere stipulation, new things about, for example, the non small cell lung carcinoma. It is true that unless this criterion is made precise, it is subject to trivial counterexamples, for the introduction of cacrinoma definition materially affects some facts. Nonetheless, non small cell lung carcinoma criterion can be made precise and defensible, and we shall soon see some ways of doing this. There are complications here, however.

For example, a definition of quotient may leave some occurrences of the term undefined (e. The orthodox view is to rule such definitions as illegitimate, but the orthodoxy deserves cll be challenged here.

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