regular cardinal

Summary

regular cardinal ranks in the top 2% of general entities by monthly Wikipedia readership (40 views/month).^[1]

Key Facts

• regular cardinal's subclass of is recorded as cardinal number^[2].
• regular cardinal's Freebase ID is recorded as /m/020tkf^[3].
• regular cardinal's Gran Enciclopèdia Catalana ID is recorded as 0267791^[4].
• regular cardinal's defining formula is recorded as |I|<\kappa\land(\forall i\in I\colon|S_i|<\kappa)\implies\left|\bigcup_{i\in I}S\right|<\kappa<sup id="cite-C4" class="cite-ref" title="regular cardinal — defining formula (P2534): |I|<\kappa\land(\forall i\in I\colon|S_i|<\kappa)\implies\left|\bigcup_{i\in I}S\right|<\kappa">[5].
• regular cardinal's nLab ID is recorded as regular cardinal^[6].
• regular cardinal's maintained by WikiProject is recorded as WikiProject Mathematics^[7].
• regular cardinal's Microsoft Academic ID is recorded as 89507440^[8].
• regular cardinal's ProofWiki ID is recorded as Definition:Regular_Cardinal^[9].
• regular cardinal's OpenAlex ID is recorded as C89507440^[10].
• regular cardinal's Gran Enciclopèdia Catalana ID is recorded as cardinal-regular^[11].

Why It Matters

regular cardinal ranks in the top 2% of general entities by monthly Wikipedia readership (40 views/month).^[1] It has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.^[12] It is known by 10 alternative names across languages and contexts.^[13]