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Mirrors > Home > ILE Home > Th. List > Mathboxes > ax-ddkcomp | Unicode version |
Description: Axiom of Dedekind completeness for Dedekind real numbers: every nonempty upper-bounded located set of reals has a real upper bound. Ideally, this axiom should be "proved" as "axddkcomp" for the real numbers constructed from IZF, and then the axiom ax-ddkcomp 10114 should be used in place of construction specific results. In particular, axcaucvg 6974 should be proved from it. (Contributed by BJ, 24-Oct-2021.) |
Ref | Expression |
---|---|
ax-ddkcomp |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA | . . . . 5 | |
2 | cr 6888 | . . . . 5 | |
3 | 1, 2 | wss 2917 | . . . 4 |
4 | c0 3224 | . . . . 5 | |
5 | 1, 4 | wne 2204 | . . . 4 |
6 | 3, 5 | wa 97 | . . 3 |
7 | vy | . . . . . . 7 | |
8 | 7 | cv 1242 | . . . . . 6 |
9 | vx | . . . . . . 7 | |
10 | 9 | cv 1242 | . . . . . 6 |
11 | clt 7060 | . . . . . 6 | |
12 | 8, 10, 11 | wbr 3764 | . . . . 5 |
13 | 12, 7, 1 | wral 2306 | . . . 4 |
14 | 13, 9, 2 | wrex 2307 | . . 3 |
15 | 10, 8, 11 | wbr 3764 | . . . . . 6 |
16 | vz | . . . . . . . . . 10 | |
17 | 16 | cv 1242 | . . . . . . . . 9 |
18 | 10, 17, 11 | wbr 3764 | . . . . . . . 8 |
19 | 18, 16, 1 | wrex 2307 | . . . . . . 7 |
20 | 17, 8, 11 | wbr 3764 | . . . . . . . 8 |
21 | 20, 16, 1 | wral 2306 | . . . . . . 7 |
22 | 19, 21 | wo 629 | . . . . . 6 |
23 | 15, 22 | wi 4 | . . . . 5 |
24 | 23, 7, 2 | wral 2306 | . . . 4 |
25 | 24, 9, 2 | wral 2306 | . . 3 |
26 | 6, 14, 25 | w3a 885 | . 2 |
27 | cle 7061 | . . . . . 6 | |
28 | 8, 10, 27 | wbr 3764 | . . . . 5 |
29 | 28, 7, 1 | wral 2306 | . . . 4 |
30 | cB | . . . . . . 7 | |
31 | cR | . . . . . . 7 | |
32 | 30, 31 | wcel 1393 | . . . . . 6 |
33 | 8, 30, 27 | wbr 3764 | . . . . . . 7 |
34 | 33, 7, 1 | wral 2306 | . . . . . 6 |
35 | 32, 34 | wa 97 | . . . . 5 |
36 | 10, 30, 27 | wbr 3764 | . . . . 5 |
37 | 35, 36 | wi 4 | . . . 4 |
38 | 29, 37 | wa 97 | . . 3 |
39 | 38, 9, 2 | wrex 2307 | . 2 |
40 | 26, 39 | wi 4 | 1 |
Colors of variables: wff set class |
This axiom is referenced by: (None) |
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