diff --git a/doc/org/concepts.org b/doc/org/concepts.org
index 063721f63..e6da60673 100644
--- a/doc/org/concepts.org
+++ b/doc/org/concepts.org
@@ -366,7 +366,7 @@ $txt
 #+RESULTS:
 [[file:concept-gba-vs-ba2.png]]
 
-* Transition-based, vs. Acceptance-based acceptance
+* Transition-based, vs. State-based acceptance
    :PROPERTIES:
    :CUSTOM_ID: trans-acc
    :END:
@@ -531,7 +531,6 @@ formula.  Everything here is case-sensitive.
 | parity min odd 5          | =Fin(0) & (Inf(1)= \vert{} =(Fin(2) & (Inf(3)= \vert{} =Fin(4))))=                  |
 | parity max even 5         | =Inf(4)= \vert{} =(Fin(3) & (Inf(2)= \vert{} =(Fin(1) & Inf(0))))=                  |
 
-
 * ω-Automaton with generalized acceptance
    :PROPERTIES:
    :CUSTOM_ID: automaton-generalized
@@ -762,7 +761,6 @@ $txt
 #+RESULTS:
 [[file:concept-dstar.png]]
 
-
 * Hanoi Omega-Automaton format (HOA)
    :PROPERTIES:
    :CUSTOM_ID: hoa