feat: Curated Notes

HepLean/PerturbationTheory/FieldSpecification/Basic.lean

@@ -7,6 +7,7 @@ import HepLean.Lorentz.RealVector.Basic
 import HepLean.PerturbationTheory.FieldStatistics.ExchangeSign
 import HepLean.SpaceTime.Basic
 import HepLean.PerturbationTheory.FieldStatistics.OfFinset
+import HepLean.Meta.Remark.Basic
 /-!
 
 # Field specification
@@ -24,6 +25,14 @@ These states carry the same field statistic as the field they are derived from.
 
 -/
 
+remark fieldSpecification_intro := "The raw ingredients of a field theory are:
+  - The specification of the fields.
+  - Whether each field is a boson or a fermion.
+  - Vertices present.
+  - Coefficents of each vertex.
+
+  We call the first two of these ingredients the `FieldSpecification` of the theory. "
+
 /-- A field specification is a type of fields plus a specification of the
   statistics (fermionic or bosonic) of each field. -/
 structure FieldSpecification where

HepLean/PerturbationTheory/FieldStatistics/Basic.lean

@@ -27,7 +27,7 @@ namespace FieldStatistic
 
 variable {𝓕 : Type}
 
-/-- Field statistics form a commuative group equivalent to `ℤ₂`. -/
+/-- Field statistics form a commuative group isomorphic to `ℤ₂`. -/
 @[simp]
 instance : CommGroup FieldStatistic where
   one := bosonic