Such being the meanings of the phrases in question, they clearly cannot describe two separate classes of argument.
Table 5 provides examples of the kinds of arguments used on different issues; we note that both supporters and opponents used the same classes of argument, and a detailed review of argument types suggested that there were few differences across groups.
We have rehearsed elsewhere five classes of argument that collectively make it implausible that these are all contamination artefacts; probably the most persuasive is simply the sheer number of prokaryotic DNA molecules that can be measured in blood and serum (e.g. 381– 381).
The deductive goodness of an important class of arguments rests on patterns in the way these arguments use notions such as not, and, or, if, all and some.
Techniques of formal logic (also called symbolic logic) were developed for a very large class of arguments involving words such as and, or, not, some, all, and, in modal logic, possibly (or possible) and necessarily (or necessary).
Social obligation is a poor basis for a general condemnation of suicide because it can just as easily be used to justify, and even promote, suicide in certain circumstances.This problem is avoided by another class of arguments against suicide based on the axiom that there is an intrinsic value to all human life, and that suicide is therefore wrong.
Recently, Marc Lange (2009a) has argued that a whole class of arguments fail to be explanatory, namely arguments by mathematical induction.
Occasionally he swerved between one view and another concerning which larger class of arguments a particular instance or sub-type of argument belonged to.
The modes functioned first as abbreviations of arguments that brought out their logically relevant form; and second, it seems, as representatives of the form of a class of arguments.
