Estoppel

[Becky]

A stop; an obstruction or bar to ones alleging or
denying a fact contrary to his own previous action, allegation, or
denial; an admission, by words or conduct, which induces another to
purchase rights, against which the party making such admission can not
take a position inconsistent with the admission.

[Raeanne Dimick]

Some legal term that prescribes that when an individual makes any false representation to another, and that other individual goes ahead and acts based on this representation, the one who has made such representation shall afterwards not be allowed to set up [what he said] was false and to assert the real truth in place of the [falsehood] which has [misled] the other. I know it seems tough, try reading it again

[PussyCat]

The principle which precludes a person from asserting something contrary to what is implied by a previous action or statement of that person or by a previous pertinent judicial determination.