diff --git a/doc.md b/doc.md
index b9b2076..8d63bd9 100644
--- a/doc.md
+++ b/doc.md
@@ -31,6 +31,6 @@ Both operations require that the start times are recomputed.
   - only one job on a machine any given time
 
 ## implementation in Python
-  - translate jobs into lists of tasks, problem into list of jobs, ie problem = [$T_0, T_1,\dots,T_{k-1}$], $T_i$ = [$\tau_1,\tau_2,\dots$]
-  - address tasks based on their indices, ie [0][1] is the second job of the first task.
+  - translate problem into list of jobs, jobs into lists of tasks, ie problem = [$T_0, T_1,\dots,T_{k-1}$], $T_i$ = [$\tau_1,\tau_2,\dots$]
+  - address tasks based on their indices, ie [0][1] is the second task of the first job.
   - compute only one possible next solution, rate, drop/accept. $\delta$ is computed iteratively during generation