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- Thread starter solakis
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- Jan 30, 2018

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What is the **definition** of "{a, 2, b}" in "axiomatic set theory"? What is the definition of "ε"?

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{a,2,b}={a,2}U{b}What is thedefinitionof "{a, 2, b}" in "axiomatic set theory"? What is the definition of "ε"?

- Aug 30, 2012

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Or even better, starting from where you left off: \(\displaystyle \{ a, 2 \} \cup \{ b \} = \left ( \{ a \} \cup \{ 2 \} \right ) \cup \{ b \}\){a,2,b}={a,2}U{b}

-Dan

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From our guidelines:here is the solution for a similar problem given by seppel in MHF

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