diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..29325cc
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lisa"]
+	path = lisa
+	url = git@github.com:epfl-lara/lisa.git
diff --git a/build.sbt b/build.sbt
new file mode 100644
index 0000000..b16781e
--- /dev/null
+++ b/build.sbt
@@ -0,0 +1,8 @@
+name := "master-project"
+
+version := "0.1"
+
+scalaVersion := "2.13.8"
+
+lazy val lisa = RootProject(file("lisa"))
+lazy val root = (project in file(".")).dependsOn(lisa)
diff --git a/lisa b/lisa
new file mode 160000
index 0000000..9a3a4a5
--- /dev/null
+++ b/lisa
@@ -0,0 +1 @@
+Subproject commit 9a3a4a59c1291f487d0b5789792e6c94aa32ef49
diff --git a/project/build.properties b/project/build.properties
new file mode 100644
index 0000000..b46cfa1
--- /dev/null
+++ b/project/build.properties
@@ -0,0 +1 @@
+sbt.version = 1.6.2
\ No newline at end of file
diff --git a/src/main/scala/Main.scala b/src/main/scala/Main.scala
new file mode 100644
index 0000000..7bfb891
--- /dev/null
+++ b/src/main/scala/Main.scala
@@ -0,0 +1,12 @@
+import lisa.kernel.Printer
+import lisa.kernel.fol.FOL._
+import lisa.KernelHelpers._
+
+object Main extends App {
+
+  val (la, lb) = (ConstantPredicateLabel("a", 0), ConstantPredicateLabel("b", 0))
+  val (a, b) = (PredicateFormula(la, Seq.empty), PredicateFormula(lb, Seq.empty))
+
+  println(Printer.prettyFormula((a \/ b) /\ a))
+
+}