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diff --git a/src/clarktown/correctors/atx_heading_block.clj b/src/clarktown/correctors/atx_heading_block.clj
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+++ b/src/clarktown/correctors/atx_heading_block.clj
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+(ns clarktown.correctors.atx-heading-block
+  (:require
+    [clojure.string :as string]))
+
+
+(defn empty-line-above?
+  "Determines whether there's a need for an empty new line 
+  above the `line` at the current `index`. In the case of a 
+  ATX heading block that starts with the `#` character, if 
+  there's no empty newline above, we need to create one, and 
+  so this function must then return `true`."
+  [lines line index]
+  (and (string/starts-with? (string/trim line) "#")
+       (> index 0)
+       (not (= (-> (nth lines (- index 1))
+                   string/trim) ""))))
+
+
+(defn empty-line-below?
+  "Determines whether there's a need for an empty new line
+  below the `line` at the current `index`. In the case of a 
+  ATX heading block that starts with the `#` character, if
+  there's no empty newline below, we need to create one, and
+  so this function must then return `true`."
+  [lines line index]
+  (and (string/starts-with? (string/trim line) "#")
+       (< index (- (count lines) 1))
+       (not (= (-> (nth lines (+ index 1))
+                   string/trim) ""))))