[Agda] Re: Accessing fields of algebra records

[N. Raghavendra]

At 2015-03-10T14:11:07+01:00, Andrea Vezzosi wrote:

> Yeah, the "open public SubRecord subrecord" parts in the definitions
> of these records make this much better usable, however it seems the
> stdlib doesn't make this easy to discover.
>
> So in the first example you should be able to just write
> "CSR.identityˡ", or simply "identityˡ" if you "open CSR".

Thanks!  I remember trying this earlier, and did so again now, but

1*n≡n : (n : ℕ) → 1 * n ≡ n
1*n≡n = CSR.identityˡ
  where
    module CSR = A.CommutativeSemiring NatProp.commutativeSemiring

gives the error

/Users/raghu/agda/My/SetTheory/Nat/IdentityElement.agda:22,9-22
Not in scope:
  CSR.identityˡ
  at /Users/raghu/agda/My/SetTheory/Nat/IdentityElement.agda:22,9-22
when scope checking CSR.identityˡ

Cheers,
Raghu.

-- 
N. Raghavendra <raghu at hri.res.in>, http://www.retrotexts.net/
Harish-Chandra Research Institute, http://www.hri.res.in/