diff --git a/doc/src/sgml/rules.sgml b/doc/src/sgml/rules.sgml
index 5024e4ff704ff..6065b1c2a3187 100644
--- a/doc/src/sgml/rules.sgml
+++ b/doc/src/sgml/rules.sgml
@@ -546,7 +546,7 @@ SELECT shoelace.sl_name, shoelace.sl_avail,
 <para>
     Now we want to write a query that finds out for which shoes currently in the store
     we have the matching shoelaces (color and length) and where the
-    total number of exactly matching pairs is greater or equal to two.
+    total number of exactly matching pairs is greater than or equal to two.
 
 <programlisting>
 SELECT * FROM shoe_ready WHERE total_avail &gt;= 2;
diff --git a/src/backend/utils/adt/multirangetypes_selfuncs.c b/src/backend/utils/adt/multirangetypes_selfuncs.c
index 191cc1f002f10..8d085ca8d4fca 100644
--- a/src/backend/utils/adt/multirangetypes_selfuncs.c
+++ b/src/backend/utils/adt/multirangetypes_selfuncs.c
@@ -734,7 +734,7 @@ calc_hist_selectivity_scalar(TypeCacheEntry *typcache, const RangeBound *constbo
  *
  * This function is used in scalar operator selectivity estimation. Another
  * goal of this function is to find a histogram bin where to stop
- * interpolation of portion of bounds which are less or equal to given bound.
+ * interpolation of portion of bounds which are less than or equal to given bound.
  */
 static int
 rbound_bsearch(TypeCacheEntry *typcache, const RangeBound *value, const RangeBound *hist,
diff --git a/src/backend/utils/adt/rangetypes_selfuncs.c b/src/backend/utils/adt/rangetypes_selfuncs.c
index a6c3c450ac9ed..e9852783a53ef 100644
--- a/src/backend/utils/adt/rangetypes_selfuncs.c
+++ b/src/backend/utils/adt/rangetypes_selfuncs.c
@@ -622,7 +622,7 @@ calc_hist_selectivity_scalar(TypeCacheEntry *typcache, const RangeBound *constbo
  *
  * This function is used in scalar operator selectivity estimation. Another
  * goal of this function is to find a histogram bin where to stop
- * interpolation of portion of bounds which are less or equal to given bound.
+ * interpolation of portion of bounds which are less than or equal to given bound.
  */
 static int
 rbound_bsearch(TypeCacheEntry *typcache, const RangeBound *value, const RangeBound *hist,
diff --git a/src/backend/utils/adt/rangetypes_spgist.c b/src/backend/utils/adt/rangetypes_spgist.c
index f29de6aab4884..912b43f083614 100644
--- a/src/backend/utils/adt/rangetypes_spgist.c
+++ b/src/backend/utils/adt/rangetypes_spgist.c
@@ -512,7 +512,7 @@ spg_range_quad_inner_consistent(PG_FUNCTION_ARGS)
 
 					/*
 					 * Range A is overleft to range B if upper bound of A is
-					 * less or equal to upper bound of B.
+					 * less than or equal to upper bound of B.
 					 */
 					maxUpper = &upper;
 					break;
@@ -531,7 +531,7 @@ spg_range_quad_inner_consistent(PG_FUNCTION_ARGS)
 
 					/*
 					 * Range A is overright to range B if lower bound of A is
-					 * greater or equal to lower bound of B.
+					 * greater than or equal to lower bound of B.
 					 */
 					minLower = &lower;
 					break;
@@ -608,7 +608,7 @@ spg_range_quad_inner_consistent(PG_FUNCTION_ARGS)
 					/*
 					 * Non-empty range A contains non-empty range B if lower
 					 * bound of A is lower or equal to lower bound of range B
-					 * and upper bound of range A is greater or equal to upper
+					 * and upper bound of range A is greater than or equal to upper
 					 * bound of range A.
 					 *
 					 * All non-empty ranges contain an empty range.
diff --git a/src/bin/pg_resetwal/pg_resetwal.c b/src/bin/pg_resetwal/pg_resetwal.c
index 76663da755daa..f8d5ecb6adba4 100644
--- a/src/bin/pg_resetwal/pg_resetwal.c
+++ b/src/bin/pg_resetwal/pg_resetwal.c
@@ -180,7 +180,7 @@ main(int argc, char *argv[])
 				}
 				if (!TransactionIdIsNormal(set_oldest_xid))
 				{
-					pg_log_error("oldest transaction ID (-u) must be greater or equal to %u", FirstNormalTransactionId);
+					pg_log_error("oldest transaction ID (-u) must be greater than or equal to %u", FirstNormalTransactionId);
 					exit(1);
 				}
 				break;
@@ -195,7 +195,7 @@ main(int argc, char *argv[])
 				}
 				if (!TransactionIdIsNormal(set_xid))
 				{
-					pg_log_error("transaction ID (-x) must be greater or equal to %u", FirstNormalTransactionId);
+					pg_log_error("transaction ID (-x) must be greater than or equal to %u", FirstNormalTransactionId);
 					exit(1);
 				}
 				break;