; Fix some comment typos

4 files changed, 4 insertions, 4 deletions

diff --git a/lisp/calc/calcalg2.el b/lisp/calc/calcalg2.el
index 53e02572064..48446c3c4c5 100644
--- a/lisp/calc/calcalg2.el
+++ b/lisp/calc/calcalg2.el
@@ -2354,7 +2354,7 @@
 
 ;; The variables math-solve-lhs, math-solve-rhs and math-try-solve-sign
 ;; are local to math-try-solve-for,  but are used by math-try-solve-prod.
-;; (math-solve-lhs and math-solve-rhs are is also local to
+;; (math-solve-lhs and math-solve-rhs are also local to
 ;; math-decompose-poly, but used by math-solve-poly-funny-powers.)
 (defvar math-solve-lhs)
 (defvar math-solve-rhs)
diff --git a/lisp/textmodes/reftex-index.el b/lisp/textmodes/reftex-index.el
index 120370a149a..811d1477ada 100644
--- a/lisp/textmodes/reftex-index.el
+++ b/lisp/textmodes/reftex-index.el
@@ -474,7 +474,7 @@ With prefix 3, restrict index to region."
 
   (interactive)
 
-  ;; Ensure access to scanning info and rescan buffer if prefix are is '(4).
+  ;; Ensure access to scanning info and rescan buffer if prefix arg is '(4).
   (let ((current-prefix-arg current-prefix-arg))
     (reftex-ensure-index-support t)
     (reftex-access-scan-info current-prefix-arg))
diff --git a/lisp/textmodes/reftex-ref.el b/lisp/textmodes/reftex-ref.el
index c2c5ca3de06..ec41dee14e8 100644
--- a/lisp/textmodes/reftex-ref.el
+++ b/lisp/textmodes/reftex-ref.el
@@ -134,7 +134,7 @@ This function is controlled by the settings of reftex-insert-label-flags."
 
   (interactive)
 
-  ;; Ensure access to scanning info and rescan buffer if prefix are is '(4).
+  ;; Ensure access to scanning info and rescan buffer if prefix arg is '(4).
   (reftex-access-scan-info current-prefix-arg)
 
   ;; Find out what kind of environment this is and abort if necessary.
diff --git a/lisp/textmodes/reftex-toc.el b/lisp/textmodes/reftex-toc.el
index c7a598c920d..c694fafcd52 100644
--- a/lisp/textmodes/reftex-toc.el
+++ b/lisp/textmodes/reftex-toc.el
@@ -216,7 +216,7 @@ When called with a raw C-u prefix, rescan the document first."
   (or reftex-support-index
       (setq reftex-toc-include-index-entries nil))
 
-  ;; Ensure access to scanning info and rescan buffer if prefix are is '(4)
+  ;; Ensure access to scanning info and rescan buffer if prefix arg is '(4)
   (reftex-access-scan-info current-prefix-arg)
 
   (let* ((this-buf (current-buffer))