delivered the Opinion of the Court.
We granted certiorari to review People v. Armintrout, No. 90CA1861 (Colo.App. Aug. 20, 1992) (not selected for official publication), in which the court of appeals held that the petitioner, John Cecil Ar-mintrout, was properly conyicted of both *578 first degree burglary and second degree burglary based on the same entry. We now reverse and hold that Armintrout’s conviction of second degree burglary was merged into the greater inclusive offense of first degree burglary, precluding the imposition of concurrent sentences for both offenses.
I
In the early morning of December 19, 1989, Armintrout, armed with a handgun, entered the home of his estranged wife. At the time, his wife was seeking a divorce. She had obtained restraining orders prohibiting Armintrout from contacting her and from being at the family home pending the issuance of permanent orders.
Armintrout’s wife testified that he remained in her bedroom on the morning in question, asking her questions. She further testified that Armintrout stated that he had broken into the house, intending to kill her and their children, but that he had changed his mind when he saw his youngest son asleep. Armintrout left the house four hours later. As a result of his actions, Armintrout was charged with one count of first degree burglary, 1 one count of second degree burglary, 2 one count of menacing 3 and two counts of crime of violence. 4
A jury convicted Armintrout of first degree burglary and second degree burglary, but acquitted him of the charges of menac--ing and crime of violence. The trial court sentenced him to fourteen years in the Department of Corrections on each of the two burglary convictions, the sentences to be served concurrently. 5
The court of appeals affirmed Armin-trout’s convictions. Relying on
People v. Ball,
II
A defendant may be convicted of multiple offenses arising out of a single transaction if the defendant has violated more than one statute. § 18-1-408(7), 8B C.R.S. (1986);
People v. Salas,
Section 18-l-408(5)(a), 8B C.R.S. (1986), defines a lesser included offense as one “established by proof of the same or less than all the facts required to establish the commission of the offense charged.” Similarly, our case law pertaining to the judicially-created rule of merger treats an offense as lesser included when proof of the essential elements of the greater offense necessarily establishes the elements required to prove the lesser offense.
E.g., People v. Henderson,
In order to determine whether one offense is included in another, we compare the elements of the statutes involved and not the evidence shown at trial.
People v. Raymer,
A
Section 18-4-202(1), 8B C.R.S. (1986) provides that a person commits first degree burglary if he:
knowingly enters or remains unlawfully in a building or occupied structure with intent to commit therein a crime, ... against a person or property, and if in effecting entry or while in the building or occupied structure or in immediate flight therefrom, he or another participant in the crime assaults or menaces any person, or he or another participant is armed with explosives or a deadly weapon.
First degree burglary is a class 3 felony. § 18-4-202(2).
Under the second degree burglary statute, a person commits second degree burglary if he “knowingly breaks an entrance into, or enters, or remains unlawfully in a building or occupied structure with intent to commit therein a crime against a person or property.” § 18-4-203(1). Second degree burglary is normally a class 4 felony. § 18-4-203(2). However, if the burglary is of a “dwelling,” the crime is elevated to a class 3 felony. § 18-4-203(2)(a).
A comparison of these statutes demonstrates that both first and second degree burglary require the unlawful entry into a “building or occupied structure.” §§ 18-4-202(1), -203(1). The only difference between the two crimes is that first degree burglary requires proof of an additional element: either the assault or menacing of any person, or being armed with explosives or a deadly weapon. § 18-4-202(1).
Despite these similarities between the two statutes, the court of appeals held that second degree burglary is not a lesser included offense of first degree burglary. The court of appeals reasoned that a conviction of class 3 felony second degree burglary of a dwelling requires proof that the building or occupied structure entered was a “dwelling,” and that proof of this fact is not required by the first degree burglary statute. Slip op. at 3 (citing
Ball,
We believe that the court of appeals erred in both this case and in Ball by treating class 4 and class 3 felony second degree burglary as separate statutory offenses. In our view, burglary of a “dwejl-ing” is a sentence enhancement provision defining the level of punishment for a particular type of second degree burglary. It is not an element of a distinguishable offense for purposes of determining whether *580 second degree burglary is a lesser included offense of first degree burglary.
In the past, we have considered statutory provisions raising the level of a particular offense from one class of felony to another. In these cases, we have treated the provisions as sentence enhancers, as opposed to elements of the offense charged.
See, e.g., Henderson,
A sentence enhancer is similar to an essential element of an offense in that a defendant may not be sentenced at the higher felony level unless the factor enhancing the sentence is proved beyond a reasonable doubt.
Powell,
However, a sentence enhancement provision is not an element of the offense charged. A defendant still may be convicted of the underlying offense without any proof of the sentence enhancer, and this would not be possible if we were dealing with an essential element of the offense.
See Henderson,
In
Powell,
we were asked to consider whether the Double Jeopardy Clauses of the state and federal constitutions precluded convicting the defendant of both first degree sexual assault with a weapon and second degree kidnapping involving sexual assault. Like the second degree burglary statute at issue in this case, the second degree kidnapping statute in
Powell
enhanced the penalty imposed from a class 4 felony to a class 2 felony if the person kidnapped was a victim of sexual assault or robbery. § 18-3-302(3)(a) & (b). Although proof of the charge of class 2 felony kidnapping involving sexual assault necessarily established all of the elements of sexual assault, we held that the defendant properly could be convicted of both offenses since “[a]
conviction
of second-degree kidnapping does not depend on the sexual assault factor.”
Powell,
Similarly, in
Henderson,
we examined whether sexual assault is a lesser included offense of second degree kidnapping involving sexual assault for purposes of the rule of merger. We upheld the defendant’s convictions of both offenses after comparing the elements of the statutes involved, finding that “[i]t is not necessary to prove sexual assault in order to prove second-degree kidnapping, nor is it necessary to prove that the victim was seized and carried away in order to be convicted of sexual assault.”
Henderson,
The People maintain that Henderson is not dispositive because the phrase “sexual assault” in the second degree kidnapping statute incorporates an independent crime for which the defendant was also convicted, whereas the phrase *581 “dwelling” in the second degree burglary statute does not. In our view, this argument elevates form over substance. As in Henderson, proof that the burglary was of a “dwelling” is not required to sustain a conviction of second degree burglary. It is only necessary to prove that the defendant unlawfully entered a “building or occupied structure.” Therefore, burglary of a “dwelling” is not an essential element of second degree burglary, any more than “sexual assault” was an essential element of second degree kidnapping in Henderson and Powell. 7
When we apply the analysis set forth in both Powell and Henderson to the statutes involved in this case, it is clear that proof of the elements of first degree burglary will necessarily establish all of the essential elements of second degree burglary. In order to convict a defendant of second degree burglary, the prosecutor need only prove that the defendant (1) knowingly; (2) unlawfully broke an entrance into, entered or remained in a building or occupied structure; (3) with the intent to commit therein a crime. § 18-4-203(1); CJI-Crim. 14:03. These same elements must be proven in order to establish first degree burglary. See § 18 — 4—202(1); CJI-Crim. 14:01. Accordingly, we hold that second degree burglary is a lesser included offense of first degree burglary.
B
The People also contend that second degree burglary is not a lesser included offense of first degree burglary because the second degree burglary statute requires additional proof that the defendant “broke an entrance into” the building or occupied structure, and this element is not contained in the first degree burglary statute. We believe that this argument is premised on an erroneous interpretation of the second degree burglary statute.
Our primary task in construing a statute is to ascertain and to give effect to the intent of the General Assembly.
People v. Guenther,
In addition, courts will sometimes construe “or” to mean “and” in order to carry out the plain meaning or intent of the legislature.
Denver-Chicago Trucking Co. v. Republic Drug Co.,
Under the second degree burglary statute, a person commits second degree burglary if he knowingly (1) breaks an entrance into, or (2) enters, or (3) remains unlawfully in a building or occupied structure. § 18-4-203(1). When we construe the word “or” in the disjunctive to refer to alternative ways of committing the same crime, it is apparent that proof of a breaking is not essential. As in the case of first degree burglary, a defendant may be convicted of second degree burglary simply by entering or remaining unlawfully in the building or occupied structure. 8 Therefore, second degree burglary is a lesser included offense of first degree burglary, even though one may commit the crime of second degree burglary in additional ways.
Ill
We hold that second degree burglary of a dwelling is a lesser included offense of, and therefore merged into, first degree burglary. Accordingly, the judgment of the court of appeals is reversed, and the case is remanded to that court with directions to return the case to the trial court for the entry of an order vacating Armin-trout’s conviction and sentence for second degree burglary.
Notes
. § 18-4-202, 8B C.R.S. (1986).
. § 18-4-203, 8B C.R.S. (1986).
. § 18-3-206, 8B C.R.S. (1986).
. § 16-11-309, 8A C.R.S. .(1986 & 1993 Supp.).
. The sentencing hearing was combined with a separate case, No. 89CR208, in which Armin-trout was convicted of attempted second degree murder of his family, attempted first degree arson, attempted fourth degree arson, and reckless endangerment. The sentences imposed in the present case were to run concurrently with those imposed in Case No. 89CR208. The court of appeals affirmed Armintrout's conviction of the charges involved in Case No. 89CR208 in People v. Armintrout, No. 90CA1830 (Colo.App. May 20, 1993) (not selected for official publication), cert, denied (Nov. 29, 1993).
. The Double Jeopardy Clauses of the United States and Colorado Constitutions protect a defendant from being placed in jeopardy twice for the same crime. U.S. Const. amend. V; Colo. Const. art. II, sec. 18. As we explained in
Boulies v. People,
. Alternatively, Armintrout argues that his conviction of second degree burglary should be vacated as a lesser included offense, even if burglary of a “dwelling" is an essential element of second degree burglary. According to Ar-mintrout, the term "dwelling” does not require proof of a fact not contained in the first degree burglary statute. By statute, the term "dwelling" is included in the definition of a “building.” "Dwelling” is defined in section 18 — 1—901(3)(g) to mean "a building which is used, intended to be used, or usually used by a person for habitation." (Emphasis added). Section 18-4-101(1) further defines “building” as follows:
“Building” means a structure which has the capacity to contain, and is designed for the shelter of, man, animals, or property, and includes a ship, trailer, sleeping car, airplane, or other vehicle or place adapted for overnight accommodations of persons or animals, or for carrying on of business therein, whether or not a person or animal is actually present.
(Emphasis added).
See also Sanchez v. People,
In this case, the charge of first degree burglary required proof that Armintrout unlawfully entered the home of his estranged wife. A conviction of this charge, therefore, necessitated proof of the very same elements essential to the charge of second degree burglary of a dwelling.
See Boulies,
. In fact, during closing argument the prosecutor informed the jury that he need not prove that Armintrout broke an entrance into the house in order to prove the crime of second degree burglary. He stated, "if you enter unlawfully into and remain — or remain in a dwelling, that is a burglary.”
