eta for Nat about book

[mikeshulman]

Personally, I'd like to minimize or avoid entirely the use of random Greek
letters to denote particular equality principles in the book. I suppose it
might be useful to mention them in the chapter Notes.
On Mar 25, 2013 7:36 PM, "nicolaikraus" [email protected] wrote:

Theorem 4.1.1 is called "uniqueness principle" in the description before.
It says that two functions with domain Nat are equal if they satisfy the
same recurrences (propositionally). Does it make sense to call this
"propositional eta"? (2 questions: Do people actually call it "eta", and
does it make sense to mention that in the book?)

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[awodey]

I agree!
this may be traditional in type theory, but it is a off-putting to the outsider.

Steve

On Mar 25, 2013, at 7:53 PM, Mike Shulman [email protected] wrote:

Personally, I'd like to minimize or avoid entirely the use of random Greek
letters to denote particular equality principles in the book. I suppose it
might be useful to mention them in the chapter Notes.
On Mar 25, 2013 7:36 PM, "nicolaikraus" [email protected] wrote:

Theorem 4.1.1 is called "uniqueness principle" in the description before.
It says that two functions with domain Nat are equal if they satisfy the
same recurrences (propositionally). Does it make sense to call this
"propositional eta"? (2 questions: Do people actually call it "eta", and
does it make sense to mention that in the book?)

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/31
.

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Reply to this email directly or view it on GitHub.