*84. CLASSES OF MUTUALLY EXCLUSIVE CLASSES.
Project Gutenberg EPUB3 edition
Whitehead, Alfred North and Russell, Bertrand
*84·132.
*84·133.
*84·134.
Dem.
*84·135.
Dem.
*84·14.
Dem.
This proposition is important, since it enables us to apply the propositions of *81 to when .
*84·2.
Dem.
*84·21.
Note. is the class of all unit classes whose members are classes; this results from *65·02. Thus "" is equivalent to " consists of one class."
Dem.
*84·22.
Dem.
*84·23.
*84·24.
Dem.
*84·241.
Dem.
*84·242.
*84·25.
Dem.
*84·26.
Dem.
*84·28.
Dem.
The following propositions are concerned with selections from a . In virtue of *84·14, the propositions of *81 which have the hypothesis become applicable when is and is a . Thus has many important properties when is a which it does not have in the general case.
*84·3.
*84·31.
*84·32.
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*84·34.
*84·341.
*84·342.
*84·35.
Dem.
*84·37.
*84·4.