diff --git a/src/nanomath.js b/src/nanomath.js
new file mode 100644
index 0000000..662e1ba
--- /dev/null
+++ b/src/nanomath.js
@@ -0,0 +1,7 @@
+import {numbers} from './numbers.js'
+
+for (const key in numbers) {
+    for (const subkey in numbers[key]) {
+        console.log(`${key}.${subkey} =`, numbers[key][subkey])
+    }
+}
diff --git a/src/number/Number.js b/src/number/Number.js
new file mode 100644
index 0000000..93f5837
--- /dev/null
+++ b/src/number/Number.js
@@ -0,0 +1,3 @@
+export const Number = {
+   test: n => typeof n === 'number'
+}
diff --git a/src/number/all.js b/src/number/all.js
new file mode 100644
index 0000000..d82eb49
--- /dev/null
+++ b/src/number/all.js
@@ -0,0 +1,4 @@
+export * as typeDefinition from './Number.js'
+export * as arithmetic from './arithmetic.js'
+export * as type from './type.js'
+export * as utils from './utils.js'
diff --git a/src/number/arithmetic.js b/src/number/arithmetic.js
index e206736..ebb26b7 100644
--- a/src/number/arithmetic.js
+++ b/src/number/arithmetic.js
@@ -1,4 +1,4 @@
-import {number, plain} from './type'
+import {plain} from './tools.js'
 
 export const abs = plain(Math.abs)
 export const absquare = plain(a => a*a)
diff --git a/src/number/tools.js b/src/number/tools.js
new file mode 100644
index 0000000..da9fe1e
--- /dev/null
+++ b/src/number/tools.js
@@ -0,0 +1,4 @@
+import {Number} from "./Number.js"
+
+export const plain = f =>
+   [Array(f.length).fill(Number), {returns: Number, behavior: f}]
diff --git a/src/number/type.js b/src/number/type.js
index ece6060..eb241fe 100644
--- a/src/number/type.js
+++ b/src/number/type.js
@@ -1,6 +1,4 @@
-export const number = {
-   test: n => typeof n === 'number'
-}
+import {plain} from './tools.js'
 
-export plain = f =>
-   [Array(f.length).fill(number), {returns: number, behavior: f}]
+// Not much to do so far when there is only one type
+export const number = plain(a => a)
diff --git a/src/number/utils.js b/src/number/utils.js
new file mode 100644
index 0000000..d6b18bb
--- /dev/null
+++ b/src/number/utils.js
@@ -0,0 +1,3 @@
+import {plain} from './tools.js'
+
+export const clone = plain(a => a)
diff --git a/src/numbers.js b/src/numbers.js
new file mode 100644
index 0000000..2f6a5ec
--- /dev/null
+++ b/src/numbers.js
@@ -0,0 +1 @@
+export * as numbers from './number/all.js'