to contradict oneself; to be inconsistent in one's words or actions

Antagonistic contradictions between the people and the enemy arising from a fundamental conflict of interests; often contrasted with [[人民内部矛盾|人民內部矛盾|ren2 min2 nei4 bu4 mao2 dun4]].

The core or primary conflict that determines the nature of a situation or problem.

The law of contradiction in formal logic, which states that two contradictory statements cannot both be true at the same time and in the same sense.

The core conflict that determines the nature of a thing's development and remains present throughout its entire process; also called [[根本矛盾|根本矛盾|gen1 ben3 mao2 dun4]].

the primary conflict that determines the nature of a process or development and remains present throughout its entire course

a figure of speech in which contradictory terms appear side by side

A set of two or more equations that have no common solution, resulting from unreasonable conditions or calculation errors.

To be at loggerheads or experience conflict; to have a disagreement or falling out.

Tensions and social conflicts between mainland China and Hong Kong since the 1997 handover

Non-antagonistic contradictions occurring on the basis of the fundamental identity of the people's interests, as opposed to [[敌我矛盾|敵我矛盾|di2 wo3 mao2 dun4]]

imbalance or tension between supply and demand

Contradictions inherent within a thing or system, regarded as the internal cause of its development

inconsistent from beginning to end; full of contradictions; inconsecutive