个人以为,在OFP之后,分析递归序数已比较困难,ψ(M)到ψ(K),如果从递归序数层面来枚举,简直“罄竹难书”!下面仅从非递归序数层面,结合MOTAN和反射模式,简要列举一下M到K之间的序数(部分概念是个人理解,如有错漏敬请指正):
1<1{1}1>1=Ω (2)
1<1{1}1{1}1>1=I (2 1-2)
1<1{2}1>1=I(ω,0) ((2 1-)^ω)
1<1{1{1}1}1>1=M (2-2 mahlo序数)
1<1{1{1}1}2>1=M^ω
1<1{1{1}1}1<1{1{1}1}1{1}1>1>1=ε(M+1)
1<1{1{1}1}1{1}1>1=Ω_(M+1)(2 after 2-2,mahlo序数之后的admissible序数)
1<1{1{1}1}1<1{1{1}1}1{1}1{1}1>1{1}1>1=Ω_Ω_...Ω_(M+1) ((1-)^(1,0) 2 after 2-2,mahlo序数之后的OFP)
1<1{1{1}1}1{1}1{1}1>1=I_(M+1)(2 1-2 after 2-2,mahlo序数之后的inaccessible序数)
1<1{1{1}1}1<1{1{1}1}1{1}1{1}1{1}1>1{1}1{1}1>1=I_I_...I_(M+1)((2 1-)^(1,0) after 2-2,mahlo序数之后的IFP)
1<1{1{1}1}1{1}1{1}1{1}1>1=I(1,M+1) (2 1-(2 1-2) after 2-2,mahlo序数之后的2-inaccessible序数)
1<1{1{1}1}1{2}1>1=I(ω,M+1) ((2 1-)^ω after 2-2)
1<1{1{1}1}1{1<2{1{1}1}1>1}1>1=I(I(I(...,M+1),M+1),M+1) ((2 1-)^(1,0) after 2-2)
1<2{1{1}1}1>1=M_2 (2nd 2-2)
1<1<1>1{1{1}1}1>1=M_ω (1-2-2)
1<1{1}1{1{1}1}1>1=M(1,0) (2 1-2-2,mahlo序数的admissible极限)
1<1{1}1{1}1{1{1}1}1>1=M(2,0) (2 1-(2 1-2-2) mahlo序数的inaccessible极限)
1<1{2}1{1{1}1}1>1=M(ω,0) ((2 1-)^ω 2-2)
1<1{1<1{1{1}1}1{1{1}1}1>1}1{1{1}1}1>1=M(1,0,0) ((2 1-)^(1,0) 2-2)
1<1{1{1}1}1{1{1}1}1>1=M(1;0) (2-2 1-2-2,mahlo序数的mahlo极限)
1<1{1}1{1{1}1}1{1{1}1}1>1=M(1;1,0) (2 1-(2-2 1-2-2),mahlo序数的mahlo极限的admissible极限)
1<1{1{1}1}1{1{1}1}1{1{1}1}1>1=M(2;0) (2-2 1-(2-2 1-2-2),mahlo序数的mahlo极限的mahlo极限)
1<1{1{1}2}1>1=M(ω;0) ((2-2 1-)^ω mahlo序数的mahlo极限的mahlo极限的...mahlo极限(ω个))
1<1{1{1}1<1{2{1}1}1>1}1>1=M(1,0;0) ((2-2 1-)^(1,0))
1<1{2{1}1}1>1=M(1;0;0) (2-2-2 2-mahlo序数)
1<1{1}1{2{1}1}1>1=M(1;0;1,0) (2 1-2-2-2,2-mahlo序数的admissible极限)
1<1{1{1}1}1{2{1}1}1>1=M(1;1;0) (2-2 1-2-2-2,2-mahlo序数的mahlo极限)
1<1{1{1}2}1{2{1}1}1>1=M(1;ω;0) ((2-2 1-)^ω 2-2-2 2-mahlo序数的mahlo极限的mahlo极限...(ω个))
1<1{2{1}1}1{2{1}1}1>1=M(2;0;0) (2-2-2 1-2-2-2,2-mahlo序数的2-mahlo极限)
1<1{2{1}2}1>1=M(ω;0;0) ((2-2-2 1-)^ω 2-mahlo序数的2-mahlo极限的2-mahlo极限...(ω个))
1<1{3{1}1}1>1=M(1;0;0;0) (2-2-2-2 3-mahlo序数)
1<1{1<1>1{1}1}1>1=M(1;@ω) ((2-)^ω n-mahlo序数的极限(n趋于ω))
1<1{1{1}1{1}1}1>1=K (3 弱紧序数)
1<1{1}1>1=Ω (2)
1<1{1}1{1}1>1=I (2 1-2)
1<1{2}1>1=I(ω,0) ((2 1-)^ω)
1<1{1{1}1}1>1=M (2-2 mahlo序数)
1<1{1{1}1}2>1=M^ω
1<1{1{1}1}1<1{1{1}1}1{1}1>1>1=ε(M+1)
1<1{1{1}1}1{1}1>1=Ω_(M+1)(2 after 2-2,mahlo序数之后的admissible序数)
1<1{1{1}1}1<1{1{1}1}1{1}1{1}1>1{1}1>1=Ω_Ω_...Ω_(M+1) ((1-)^(1,0) 2 after 2-2,mahlo序数之后的OFP)
1<1{1{1}1}1{1}1{1}1>1=I_(M+1)(2 1-2 after 2-2,mahlo序数之后的inaccessible序数)
1<1{1{1}1}1<1{1{1}1}1{1}1{1}1{1}1>1{1}1{1}1>1=I_I_...I_(M+1)((2 1-)^(1,0) after 2-2,mahlo序数之后的IFP)
1<1{1{1}1}1{1}1{1}1{1}1>1=I(1,M+1) (2 1-(2 1-2) after 2-2,mahlo序数之后的2-inaccessible序数)
1<1{1{1}1}1{2}1>1=I(ω,M+1) ((2 1-)^ω after 2-2)
1<1{1{1}1}1{1<2{1{1}1}1>1}1>1=I(I(I(...,M+1),M+1),M+1) ((2 1-)^(1,0) after 2-2)
1<2{1{1}1}1>1=M_2 (2nd 2-2)
1<1<1>1{1{1}1}1>1=M_ω (1-2-2)
1<1{1}1{1{1}1}1>1=M(1,0) (2 1-2-2,mahlo序数的admissible极限)
1<1{1}1{1}1{1{1}1}1>1=M(2,0) (2 1-(2 1-2-2) mahlo序数的inaccessible极限)
1<1{2}1{1{1}1}1>1=M(ω,0) ((2 1-)^ω 2-2)
1<1{1<1{1{1}1}1{1{1}1}1>1}1{1{1}1}1>1=M(1,0,0) ((2 1-)^(1,0) 2-2)
1<1{1{1}1}1{1{1}1}1>1=M(1;0) (2-2 1-2-2,mahlo序数的mahlo极限)
1<1{1}1{1{1}1}1{1{1}1}1>1=M(1;1,0) (2 1-(2-2 1-2-2),mahlo序数的mahlo极限的admissible极限)
1<1{1{1}1}1{1{1}1}1{1{1}1}1>1=M(2;0) (2-2 1-(2-2 1-2-2),mahlo序数的mahlo极限的mahlo极限)
1<1{1{1}2}1>1=M(ω;0) ((2-2 1-)^ω mahlo序数的mahlo极限的mahlo极限的...mahlo极限(ω个))
1<1{1{1}1<1{2{1}1}1>1}1>1=M(1,0;0) ((2-2 1-)^(1,0))
1<1{2{1}1}1>1=M(1;0;0) (2-2-2 2-mahlo序数)
1<1{1}1{2{1}1}1>1=M(1;0;1,0) (2 1-2-2-2,2-mahlo序数的admissible极限)
1<1{1{1}1}1{2{1}1}1>1=M(1;1;0) (2-2 1-2-2-2,2-mahlo序数的mahlo极限)
1<1{1{1}2}1{2{1}1}1>1=M(1;ω;0) ((2-2 1-)^ω 2-2-2 2-mahlo序数的mahlo极限的mahlo极限...(ω个))
1<1{2{1}1}1{2{1}1}1>1=M(2;0;0) (2-2-2 1-2-2-2,2-mahlo序数的2-mahlo极限)
1<1{2{1}2}1>1=M(ω;0;0) ((2-2-2 1-)^ω 2-mahlo序数的2-mahlo极限的2-mahlo极限...(ω个))
1<1{3{1}1}1>1=M(1;0;0;0) (2-2-2-2 3-mahlo序数)
1<1{1<1>1{1}1}1>1=M(1;@ω) ((2-)^ω n-mahlo序数的极限(n趋于ω))
1<1{1{1}1{1}1}1>1=K (3 弱紧序数)