Ipso jure is a Latin phrase, directly translated as by operation of law. It is used as an adverb

Adverb

An adverb is a part of speech that modifies verbs or any part of speech other than a noun . Adverbs can modify verbs, adjectives , clauses, sentences, and other adverbs....

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Usage

The phrase is used to describe legal consequences that occur by the act of the law itself. For example, if property is held in a tenancy by the entirety by a husband and wife, who then get divorce

Divorce

Divorce is the final termination of a marital union, canceling the legal duties and responsibilities of marriage and dissolving the bonds of matrimony between the parties...

d, the property is converted ipso jure (i.e. by the law itself) into another form of tenancy, usually a tenancy in common, at the very instant the marriage is dissolved. Likewise, contract

Contract

A contract is an agreement entered into by two parties or more with the intention of creating a legal obligation, which may have elements in writing. Contracts can be made orally. The remedy for breach of contract can be "damages" or compensation of money. In equity, the remedy can be specific...

s that establish partnership

Partnership

A partnership is an arrangement where parties agree to cooperate to advance their mutual interests.Since humans are social beings, partnerships between individuals, businesses, interest-based organizations, schools, governments, and varied combinations thereof, have always been and remain commonplace...

s sometimes provide that the partnership is ipso jure dissolved if one partner attempts to sell his or her interest in the partnership. In all of these situations, when one legally significant fact occurs, other relationships are automatically changed by the law.