The Latin phrase ipso facto – or “by the very fact” – is a nice “50 cent” phrase to express the idea that one thing necessarily causes or results in another.
If you were born in the United States, ipso facto you are an American citizen. Or, in a funnier vein, if your lips are moving and you are a politician, ipso facto you are telling a lie . . .
Et al is a shortened version of the Latin phrase “et alia”, which means “and others”. The phrase is commonly used in the title of legal cases where multiple parties are involved, such as Jones v. Smith, Roberts, et al.
The phrases ipso facto and et al began life in the legal arena but like many legal terms have infiltrated everyday speech. – Kevin Palmer