CO:修订间差异
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''' | '''CO(Cantor Ordinal)'''是一个[[序数]]。 | ||
[[文件:Ζ.jpg|缩略图|图片仅供参考]] | |||
{| class="wikitable" | {| class="wikitable" | ||
![[序数记号]] | |||
! | |||
!表达式 | !表达式 | ||
|- | |- | ||
| | |常用表示 | ||
|<math>\zeta_0</math> | |<math>\zeta_0</math> | ||
|- | |- | ||
|[[ | |[[Veblen 函数]] | ||
|<math>\varphi(2,0)</math> | |<math>\varphi(2,0)</math> | ||
|- | |- | ||
|[[OCF#BOCF|BOCF]] | |[[OCF#BOCF|BOCF]] | ||
|<math>\psi(\Omega^2)/\psi(\psi_1(0) | |<math>\psi(\Omega^2)/\psi(\psi_1(\psi_1(0)))</math> | ||
|- | |- | ||
|[[OCF#MOCF|MOCF]] | |[[OCF#MOCF|MOCF]] | ||
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|- | |- | ||
|[[BMS]] | |[[BMS]] | ||
|<math>\begin{pmatrix} 0 & 1 & | |<math>\begin{pmatrix} 0 & 1 & 2\\ 0 & 1 & 1 \end{pmatrix}=(0,0)(1,1)(2,1)</math> | ||
|- | |- | ||
|[[长初等序列|LPrSS]] | |[[长初等序列|LPrSS]] | ||
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|<math>1,3,5</math> | |<math>1,3,5</math> | ||
|- | |- | ||
|[[Y序列]] | |[[Y序列|1-Y]] | ||
|<math>1,2,4,4</math> | |<math>1,2,4,4</math> | ||
|- | |- | ||
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|<math>\psi^H_1(\psi^H_2(\psi^H_2(0)))</math> | |<math>\psi^H_1(\psi^H_2(\psi^H_2(0)))</math> | ||
|- | |- | ||
|[[weak | |[[weak Veblen 函数]] | ||
|<math>\varphi(1,0,0,0)</math> | |<math>\varphi(1,0,0,0)</math> | ||
|- | |- | ||
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|- | |- | ||
|[[NOCF]] | |[[NOCF]] | ||
|<math></math> | |<math>\psi(\Omega_{\omega^2})/\psi(\Omega_{\psi(\psi_1(\psi_1(0)))})</math> | ||
|- | |- | ||
|[[ | |[[Dropping#M 记号|M 记号]] | ||
|<math></math> | |<math>\psi(\psi(M+\psi(M)))</math> | ||
|} | |} | ||
== 性质 == | === 性质 === | ||
[[证明论序数]]:<math>{\rm ACA_0}+\forall X\exists Y({\rm TJ}(\omega,X,Y))</math>,<math>\rm ACA_0+(BR)</math>,<math>\rm p_1(ACA_0)</math> | |||
极限在此处的记号:ε 函数,扩展多维数阵 | |||
[[分类:序数]] | |||