No that is the cardinality of the set “{}” itself and thus the size of the set, specifically the empty set.
No, {} is an existing thing that has no sub-existing things, and this existing thing is called atom.
The cardinality of the non-existence of sub-things, is exactly 0.
The cardinality of the existence of {} is exactly
∞.
Standard Math uses cardinality in order to measure the things under cardinality
∞, by ignoring total existence, which is the opposite of non-existence (which its cardinality is 0).
It is obvious that non-existence (has cardinality 0) or total existence (has cardinality
∞) are the building-blocks that enable the rest of the existing things, such that their cardinality is > 0 and <
∞.
So the rest of the existing things is the result of the linkage between non-existence (has cardinality 0) and total existence (has cardinality
∞).
From this linked point of view any cardinality must be > 0 and <
∞. By focused on the results of the linkage, we are aware of the building-blocks that enable these results, in the first place, and by not ignoring these building-blocks each complex thing is an offspring of non-existence AND total-existence.
Furthermore, from this fundamental understanding we do not measure only the existence of the first-level of some complexity, as Standard Math does, and as a result Cardinality is generalized beyond this arbitrary limitation, and used to measure the complexity of any offspring.
The Man, you simply do not let your mind to understand things from their existence.
As a result you do not understand non-existence, total existence and no offspring of non-existence AND total-existence.
Moreover, you do not understand what a Set is, in the first place, and how non-existence AND total-existence is an extension of existence beyond totality.
As a result you do not understand Cardinality as the measurement unit of the existence of things, whether they are total (in the case of 0 or
∞) or not (in the case of x, such that 0 < x <
∞).
Standard Math is nothing but an arbitrary game with notations without notions, and as a result it can't deal with these simple facts:
1) X is a set and any member of X (if exists) is a set.
2) If X is an infinite set, then |X| is a transfinite cardinal.
3) If |X| is a transfinite cardinal, such that |X| > the cardinality of any member of X and any member of X is a finite set, then |X| is the smallest transfinite cardinal.
It is shown by jsfisher that (3) does not hold if Cardinality is a measurement that is limited only to the first level of sets.
But (3) holds if Cardinality measures the existence of complexities (in that case totalities like non-existence or total existence are directly ignored because they are not able the existence of Complexity if they are not linked, but if linked they are used as the building-blocks of any measured offspring of them, where only an offspring is a complex existence).
In that case the Cardinality of X={{a,b,c,…}} = |{a,b,c,…}| + 1 and (3) holds.
Wait cardinality was the “the measurement unit of the existence of things” by your first assertion, now it is “the cardinality of this complexity”.
An offspring of non-existence AND total-existence (that cannot be but a complex thing) has cardinality x, such that 0 < x <
∞, so?
Please tell us The Man, what exactly prevents from you to understand total-existence as the opposite of non-existence?
Also please tell us why Cardinality is not the measurement unit of the existence of things, whether the measured is non-existence, total-existence or some of their offspring (which cannot be but a complex thing)?