Zulip Chat Archive

Stream: mathlib4

Topic: Precedence issue


Patrick Massot (Aug 08 2024 at 11:30):

In docs#LinearMap.quotKerEquivRange, I find it a little bit sad to need parentheses around the quotient. Is there a good reason for the quotient notation to have such a low precedence?

Eric Wieser (Aug 08 2024 at 11:50):

It seems odd to me that the precedence of ≃ₗ[ is different to that of ≃[

Eric Wieser (Aug 08 2024 at 11:51):

It seems some of our isomorphisms are :25, and others :50

Patrick Massot (Aug 08 2024 at 13:36):

I understand that Equiv is data but I think the least surprising behavior would still to have the same precedence as equality.

Patrick Massot (Aug 08 2024 at 13:37):

And I having that giving the quotient symbol a precedence comparable to the division precedence is also the most unsurprising.


Last updated: May 02 2025 at 03:31 UTC