TEXAS RULES OF CIVIL PROCEDURE / RULE 45
TRCP 45: Definition and system
Petitions and answers, fair notice, paper pleadings and substantial justice.
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Pleadings in the district and county courts shall
(a) be by petition and answer;
(b) consist of a statement in plain and concise language of the plaintiff's cause of action or the defendant's grounds of defense. That an allegation be evidentiary or be of legal conclusion shall not be grounds for objection when fair notice to the opponent is given by the allegations as a whole; and
(c) contain any other matter which may be required by any law or rule authorizing or regulating any particular action or defense.
Pleadings that are not filed electronically must be in writing, on paper measuring approximately 8 ½ inches by 11 inches, and signed by the party or his attorney. The use of recycled paper is strongly encouraged.
All pleadings shall be construed so as to do substantial justice.