Difficult reasoning is the reasoning that consists of two hypothetical judgments and one alternative judgment. The hypothetical judgment is to determine the existence of one thing (called the antecedent) and the existence of another thing (called the latter). Conditional judgment. Election judgment is a judgment in which at least one of the several possible situations exists. Difficult reasoning is to use positive judgment to affirm or negate a hypothetical judgment, thereby affirming or negating a hypothetical judgment. A form of reasoning for the presence or absence of a successor or antecedent. Based on the above definitions, Which of the following are not dilemmas:. ['If a tiger is stimulated, it will eat people; if it is not stimulated, it will also eat people, or to stimulate it, or not to stimulate it, so the tiger will always eat people.', 'If there is heavy rain this afternoon, then the playground will collect water; if there is water in the playground, then the game will be postponed, so the game is not postponed today, so if the game is not postponed today, then there is no heavy rain this afternoon.', 'If Zhang San is a murderer, then he has the time to commit the crime; if Zhang San is a murderer, then he has the motivation to commit the crime. Zhang San either has no time to commit the crime or has no motivation to commit the crime, so he is not a murderer.', 'If the assault violates the law, it will be punished by the law; if the assault does not violate the law, it will be condemned by the public opinion. The assault or the violation of the law, or does not violate the law, so or Be punished by law, or condemned by public opinion.']