(1) A pleading may expressly join issue on a previous pleading.
Example
an express denial
(2) An express joinder of issue on a pleading operates as a denial of every allegation of fact made in the pleading other than an allegation that is expressly admitted.
(3) If there is no reply by a plaintiff to a defence, there is an implied joinder of issue on the defence.
(4) If there is no answer by the opposite party to a reply or subsequent pleading, there is an implied joinder of issue on the reply or subsequent pleading.
(5) An implied joinder of issue on a pleading operates as a denial of every allegation of fact made in the pleading.