That depends on what you mean by "water", what you mean by "wet" and what you mean by "proof". Now, that sounds a little flippant, but I will explain.
As for "proof", I will discuss in terms of logical proof.
As for "water", I think it clear we are discussing H2O.
As for "wet", see definitions below.
In the discipline of Logic, a tautology is something that is true by definition, or a formula that is always true in and of itself, or by necessity.
The word "wet" can be an adjective, a noun, or a verb depending on a dictionary- defines "wet", in part, as: adjective: -moistened, covered, or soaked with water.... -characterized by the presence or use of water....
noun: -something that is or makes wet, as water....
verb: -to make (something) wet, as by moistening or soaking....
The statement "water is wet" is true by definition. It is a tautology. The proof is by virtue of the definition of the word water and the definition of the word wet.
Answers & Comments
That depends on what you mean by "water", what you mean by "wet" and what you mean by "proof". Now, that sounds a little flippant, but I will explain.
As for "proof", I will discuss in terms of logical proof.
As for "water", I think it clear we are discussing H2O.
As for "wet", see definitions below.
In the discipline of Logic, a tautology is something that is true by definition, or a formula that is always true in and of itself, or by necessity.
The word "wet" can be an adjective, a noun, or a verb depending on a dictionary- defines "wet", in part, as:
adjective:
-moistened, covered, or soaked with water....
-characterized by the presence or use of water....
noun:
-something that is or makes wet, as water....
verb:
-to make (something) wet, as by moistening or soaking....
The statement "water is wet" is true by definition. It is a tautology. The proof is by virtue of the definition of the word water and the definition of the word wet.