markdown README

README → README.md

-PREREQUISITES
--------------
+# PREREQUISITES
 
 This version is known to compile with:
 
@@ -12,9 +11,23 @@ fetch the development branch yourself). Iris compiles fine even without this
 patch, but proof bullets will only be in 'strict' (enforcing) mode with the
 fixed version of Ssreflect.
  
-BUILDING INSTRUCTIONS
----------------------
+# BUILDING INSTRUCTIONS
 
 Run the following command to build the full development:
 
   make
+
+
+# STRUCTURE
+
+* The folder `prelude` contains an extended "Standard Library" by Robbert
+  Krebbers <http://robbertkrebbers.nl/thesis.html>.
+* The folder `algebra` contains the COFE and CMRA constructions as well as
+  the solver for recursive domain equations.
+* The folder `program_logic` builds the semantic domain of Iris, defines and
+  verifies primitive view shifts and weakest preconditions, and builds some
+  language-independent derived constructions (e.g., STSs).
+* The folder `heap_lang` defines the ML-like concurrent heap language, and a
+  few derived constructions (e.g., parallel composition).
+* The folder `barrier` contains the implementation and proof of the barrier.
+* The folder `examples` contains the examples given in the paper.

program_logic/weakestpre.v

@@ -248,7 +248,7 @@ Proof. by setoid_rewrite (always_and_sep_r _ _); rewrite wp_frame_r. Qed.
 Lemma wp_impl_l E e Φ Ψ :
   ((□ ∀ v, Φ v → Ψ v) ∧ WP e @ E {{ Φ }}) ⊢ WP e @ E {{ Ψ }}.
 Proof.
-  rewrite wp_always_l; apply wp_mono=> // v.
+  rewrite wp_always_l. apply wp_mono=> // v.
   by rewrite always_elim (forall_elim v) impl_elim_l.
 Qed.
 Lemma wp_impl_r E e Φ Ψ :