3 files changed, 3 insertions, 3 deletions
diff --git a/src/theory/arith/arith_rewriter.cpp b/src/theory/arith/arith_rewriter.cpp
index 6087ab70f..4d7e9deef 100644
--- a/src/theory/arith/arith_rewriter.cpp
+++ b/src/theory/arith/arith_rewriter.cpp
@@ -212,7 +212,7 @@ RewriteResponse ArithRewriter::postRewriteTerm(TNode t){
         // Todo improve the exception thrown
         std::stringstream ss;
         ss << "The POW(^) operator can only be used with a natural number ";
-        ss << "in the exponent.  Exception occured in:" << std::endl;
+        ss << "in the exponent.  Exception occurred in:" << std::endl;
         ss << "  " << t;
         throw LogicException(ss.str());
       }
diff --git a/src/theory/builtin/kinds b/src/theory/builtin/kinds
index c0f955861..0ebebf1dd 100644
--- a/src/theory/builtin/kinds
+++ b/src/theory/builtin/kinds
@@ -302,7 +302,7 @@ operator SEXPR 0: "a symbolic expression (any arity)"
 
 operator LAMBDA 2 "a lambda expression; first parameter is a BOUND_VAR_LIST, second is lambda body"
 
-parameterized CHAIN CHAIN_OP 2: "chained operator (N-ary), turned into a conjuction of binary applications of the operator on adjoining parameters; first parameter is a CHAIN_OP representing a binary operator, rest are arguments to that operator"
+parameterized CHAIN CHAIN_OP 2: "chained operator (N-ary), turned into a conjunction of binary applications of the operator on adjoining parameters; first parameter is a CHAIN_OP representing a binary operator, rest are arguments to that operator"
 constant CHAIN_OP \
     ::CVC4::Chain \
     ::CVC4::ChainHashFunction \
diff --git a/src/theory/strings/theory_strings_type_rules.h b/src/theory/strings/theory_strings_type_rules.h
index eae993545..6dc207b6b 100644
--- a/src/theory/strings/theory_strings_type_rules.h
+++ b/src/theory/strings/theory_strings_type_rules.h
@@ -98,7 +98,7 @@ public:
     if( check ) {
       TypeNode t = n[0].getType(check);
       if (!t.isString()) {
-        throw TypeCheckingExceptionPrivate(n, "expecting an orginal string term in string contain");
+        throw TypeCheckingExceptionPrivate(n, "expecting an original string term in string contain");
       }
       t = n[1].getType(check);
       if (!t.isString()) {