Ramification, consequence and corollary?

[Andreana]

Hi, what are the differences between those words:

ramification, consequence and corollary?

Thank you!
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A smile will open doors ;-)

[Mister Micawber]

Briefly, a ramification is one of a multiplicity of consequences; a corollary is a logical or natural consequence.
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Native English teacher at Mister Micawber's