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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-rrext | Structured version Visualization version Unicode version |
Description: Define the class of extensions of . This is a shorthand for listing the necessary conditions for a structure to admit a canonical embedding of into it. Interestingly, this is not coming from a mathematical reference, but was from the necessary conditions to build the embedding at each step (, and ). It would be interesting see if this is formally treated in the literature. See isrrext 30044 for a better readable version. (Contributed by Thierry Arnoux, 2-May-2018.) |
Ref | Expression |
---|---|
df-rrext | ℝExt NrmRing Mod NrmMod chr CUnifSp UnifSt metUnif |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | crrext 30038 | . 2 ℝExt | |
2 | vr | . . . . . . . 8 | |
3 | 2 | cv 1482 | . . . . . . 7 |
4 | czlm 19849 | . . . . . . 7 Mod | |
5 | 3, 4 | cfv 5888 | . . . . . 6 Mod |
6 | cnlm 22385 | . . . . . 6 NrmMod | |
7 | 5, 6 | wcel 1990 | . . . . 5 Mod NrmMod |
8 | cchr 19850 | . . . . . . 7 chr | |
9 | 3, 8 | cfv 5888 | . . . . . 6 chr |
10 | cc0 9936 | . . . . . 6 | |
11 | 9, 10 | wceq 1483 | . . . . 5 chr |
12 | 7, 11 | wa 384 | . . . 4 Mod NrmMod chr |
13 | ccusp 22101 | . . . . . 6 CUnifSp | |
14 | 3, 13 | wcel 1990 | . . . . 5 CUnifSp |
15 | cuss 22057 | . . . . . . 7 UnifSt | |
16 | 3, 15 | cfv 5888 | . . . . . 6 UnifSt |
17 | cds 15950 | . . . . . . . . 9 | |
18 | 3, 17 | cfv 5888 | . . . . . . . 8 |
19 | cbs 15857 | . . . . . . . . . 10 | |
20 | 3, 19 | cfv 5888 | . . . . . . . . 9 |
21 | 20, 20 | cxp 5112 | . . . . . . . 8 |
22 | 18, 21 | cres 5116 | . . . . . . 7 |
23 | cmetu 19737 | . . . . . . 7 metUnif | |
24 | 22, 23 | cfv 5888 | . . . . . 6 metUnif |
25 | 16, 24 | wceq 1483 | . . . . 5 UnifSt metUnif |
26 | 14, 25 | wa 384 | . . . 4 CUnifSp UnifSt metUnif |
27 | 12, 26 | wa 384 | . . 3 Mod NrmMod chr CUnifSp UnifSt metUnif |
28 | cnrg 22384 | . . . 4 NrmRing | |
29 | cdr 18747 | . . . 4 | |
30 | 28, 29 | cin 3573 | . . 3 NrmRing |
31 | 27, 2, 30 | crab 2916 | . 2 NrmRing Mod NrmMod chr CUnifSp UnifSt metUnif |
32 | 1, 31 | wceq 1483 | 1 ℝExt NrmRing Mod NrmMod chr CUnifSp UnifSt metUnif |
Colors of variables: wff setvar class |
This definition is referenced by: isrrext 30044 |
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