Remove extra the

Author: spastorino

book/src/engine/logic.md

@@ -23,9 +23,9 @@ something to be unsolvable), the solving is restarted at the root `Goal`.
 In order to detect cycles (talked more about later), as well as keep track of
 the selected [`Strand`] for each table, `chalk-engine` stores a [`Stack`] on the
 `Forest`. Whenever a new goal is selected, a [`StackEntry`] is pushed onto the
-`Stack`, as well as the the "time" (which also gets incremented) that it was
-pushed. This "time" can be compared later to check if all the `Strands` of a
-[`Table`] have been checked in a single solve.
+`Stack`, as well as the "time" (which also gets incremented) that it was pushed.
+This "time" can be compared later to check if all the `Strands` of a [`Table`]
+have been checked in a single solve.
 
 As either `Answer`s are found for the selected `Table`, entries on the stack are
 `pop`ed. If something is found to be unsolvable, the complete stack is unwound.