As used in this Part C “deception” means knowingly to:
     (a) Create or confirm another’s impression which is false and which the offender does not believe to be true; or

Terms Used In Illinois Compiled Statutes 720 ILCS 5/15-4


     (b) Fail to correct a false impression which the offender previously has created or confirmed; or
     (c) Prevent another from acquiring information pertinent to the disposition of the property involved; or
     (d) Sell or otherwise transfer or encumber property, failing to disclose a lien, adverse claim, or other legal impediment to the enjoyment of the property, whether such impediment is or is not valid, or is or is not a matter of official record; or
     (e) Promise performance which the offender does not intend to perform or knows will not be performed. Failure to perform standing alone is not evidence that the offender did not intend to perform.