/-
Copyright (c) 2024 Joseph Tooby-Smith. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Tooby-Smith
-/
import HepLean.PerturbationTheory.FeynmanDiagrams.Basic
import HepLean.Meta.Informal.Basic
/-!

# Wick contraction in position space

Every complete Wick contraction leads to a function on positions, following
the Feynman rules.

## Further reading

The following reference provides a good resource for Wick contractions of external fields.
- http://www.dylanjtemples.com:82/solutions/QFT_Solution_I-6.pdf

-/

namespace Wick

end Wick