diff options
| author | Cyril Cohen | 2016-08-25 01:38:44 +0200 |
|---|---|---|
| committer | Cyril Cohen | 2016-08-25 01:39:43 +0200 |
| commit | 2d824f394e8c3148e95b3374fb9903f6032ba3e6 (patch) | |
| tree | 6640dead8c6ee6147eebdc0c9e12bfa621787ced /mathcomp/fingroup | |
| parent | 933085b944ecef3d50de3c81444079c30c462ca9 (diff) | |
Enriched numClosedFieldType so that it factors a lot of theory from both complex and algC.
The definitions of 'i, conjC, Re, Im, n.-root, sqrtC and their theory
have been moved to the numClosedFieldType structure in ssrnum.
This covers boths the uses in algC and complex.v. To that end the
numClosedFieldType structure has been enriched with conjugation and 'i.
Note that 'i can be deduced from the property of algebraic closure and is
only here to let the user chose which definitional equality should hold
on 'i. Same thing for conjC that could be written `|x|^+2/x, the only
nontrivial (up to my knowledge) property is the fact that conjugation
is a ring morphism.
Diffstat (limited to 'mathcomp/fingroup')
| -rw-r--r-- | mathcomp/fingroup/fingroup.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/fingroup/fingroup.v b/mathcomp/fingroup/fingroup.v index 01eea88..70553a0 100644 --- a/mathcomp/fingroup/fingroup.v +++ b/mathcomp/fingroup/fingroup.v @@ -232,7 +232,7 @@ Structure base_type : Type := PackBase { (* coercion of A * B to pred_sort in x \in A * B, or rho * tau to *) (* ffun and Funclass in (rho * tau) x, when rho tau : perm T. *) (* Therefore we define an alias of sort for argument types, and *) -(* make it the default coercion FinGroup.base_class >-> Sortclass *) +(* make it the default coercion FinGroup.base_type >-> Sortclass *) (* so that arguments of a functions whose parameters are of type, *) (* say, gT : finGroupType, can be coerced to the coercion class *) (* of arg_sort. Care should be taken, however, to declare the *) |