Estoppel prevents a person who induced belief by words or conduct from denying that induced truth in disputes. When a person, by declaration, act or omission, intentionally causes or permits another to believe a fact and that other acts on the belief, the first person and their representative are precluded from denying that fact in any suit or proceeding between them; the rule covers inducement by words, conduct or silence and applies where the induced party has changed position in reliance on the belief.