Fix typos.

src/muz/transforms/dl_mk_array_instantiation.h

@@ -26,7 +26,7 @@ Implementation:
 
     1) Dealing with multiple quantifiers -> The options fixedpoint.xform.instantiate_arrays.nb_quantifier gives the number of quantifiers per array.
 
-    2) Inforcing the instantiation -> We suggest an option (enforce_instantiation) to enforce this abstraction. This transforms
+    2) Enforcing the instantiation -> We suggest an option (enforce_instantiation) to enforce this abstraction. This transforms
        P(a) into P(i, a[i]). This enforces the solver to limit the space search at the cost of imprecise results. This option
        corresponds to fixedpoint.xform.instantiate_arrays.enforce
 

src/muz/transforms/dl_mk_interp_tail_simplifier.h

@@ -53,7 +53,7 @@ namespace datalog {
             */
             void reset(rule * r);
 
-            /** Reset subtitution and unify tail tgt_idx of the target rule and the head of the src rule */
+            /** Reset substitution and unify tail tgt_idx of the target rule and the head of the src rule */
             bool unify(expr * e1, expr * e2);
 
             void get_result(rule_ref & res);

src/muz/transforms/dl_mk_rule_inliner.h

@@ -45,7 +45,7 @@ namespace datalog {
             : m(ctx.get_manager()), m_rm(ctx.get_rule_manager()), m_context(ctx), 
             m_interp_simplifier(ctx), m_subst(m), m_unif(m), m_ready(false), m_normalize(true) {}
             
-        /** Reset subtitution and unify tail tgt_idx of the target rule and the head of the src rule */
+        /** Reset substitution and unify tail tgt_idx of the target rule and the head of the src rule */
         bool unify_rules(rule const& tgt, unsigned tgt_idx, rule const& src);
 
         /**

src/muz/transforms/dl_mk_scale.h

@@ -7,7 +7,7 @@ Module Name:
 
 Abstract:
 
-    Add scale factor to linear (Real) arithemetic Horn clauses.
+    Add scale factor to linear (Real) arithmetic Horn clauses.
     The transformation replaces occurrences of isolated constants by
     a scale multiplied to each constant.