You're not making it look good. A common use of be is to express set membership rather than identity. For example, "two is an even number" or "tigers are cats".
We may hope that one day you'll come to realize that set membership is not reflexive, and - more to the point - also not symmetric.
> A common use of be is to express set membership rather than identity
Google for "logical "is a" vs logical "is"".
Google AI answers this:
> "is" typically represents an equality relation
Rest is from the AI response:
In logic, "is" typically represents an equality relation, while "is a" (or "is of the type") represents an inclusion relation. "Is" indicates that two things are the same or identical, while "is a" indicates that one thing is a member of a larger class or set of things.
Logical "is" (equality):
Meaning:
"A is B" means that A and B are the same thing, or have the same properties.
Example:
"The Eiffel Tower is in Paris" (the Eiffel Tower and the thing in Paris are the same thing).
Logical "is a" (inclusion or type):
Meaning: "A is a B" means that A belongs to the category or class of things that are B.
Example: "A dog is an animal" (dogs are a type of animal).
"silk is cloth" is not true except for the colloquial interpretation that infers "silk can sometimes be a cloth". Given the clarifications, it seems the OP is intending to say it's an exact equality and not a colloquial definition that actually means "subset".
I'll note, I have not asked any questions other than (paraphrasing): "what do you mean precisely?" To which, I have not gotten any answers other than trolling and flaming; and examples that all conveniently swap "is" with "is a".
You're saying that "Math" and "Language" are 'sets'? And that the phrase "Math is Language" should be interpreted as expressing the relationship between sets?
If we do want to talk sets, that seems far more interesting.
The statements like "Math is a language", or "Math has equivalence classes within languages", or "Mathematics are a Language" are slightly more interesting to consider IMO.
>> Math major here.
> You say that like you think it's a qualification?
Agree, appeal to authority fallacy. I take that over mis-framing any day though.
Any old-timers might appreciate that we're arguing over the meaning of the word "is" =D
You say that like you think it's a qualification?
You're not making it look good. A common use of be is to express set membership rather than identity. For example, "two is an even number" or "tigers are cats".
We may hope that one day you'll come to realize that set membership is not reflexive, and - more to the point - also not symmetric.