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book/src/language-tour/int.md

@@ -1 +1,15 @@
 # Int
+
+Ints are plutus integers which are arbitrary size.
+
+So, there is no underflow. Basic arithmetic can be done for O(1) between ints (+,-,*).
+
+```gleam
+// A convenient helper function to get the number 7.
+pub fn get7(){
+    let x = 3
+    let y = 2
+    let z = 1
+    x*y + z
+}
+```