Description: Membership in 1-dimensional subspace. All members are collinear with the generating vector. (Contributed by NM, 19-Jul-2001) (Revised by Mario Carneiro, 15-May-2014) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | h1de2.1 | |
|
h1de2.2 | |
||
Assertion | h1de2bi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | h1de2.1 | |
|
2 | h1de2.2 | |
|
3 | his6 | |
|
4 | 2 3 | ax-mp | |
5 | 4 | necon3bii | |
6 | 1 2 | h1de2i | |
7 | 6 | adantl | |
8 | 7 | oveq2d | |
9 | 2 2 | hicli | |
10 | 9 | recclzi | |
11 | ax-hvmulass | |
|
12 | 9 1 11 | mp3an23 | |
13 | 10 12 | syl | |
14 | ax-1cn | |
|
15 | 14 9 | divcan1zi | |
16 | 15 | oveq1d | |
17 | 13 16 | eqtr3d | |
18 | ax-hvmulid | |
|
19 | 1 18 | ax-mp | |
20 | 17 19 | eqtrdi | |
21 | 20 | adantr | |
22 | 8 21 | eqtr3d | |
23 | 1 2 | hicli | |
24 | ax-hvmulass | |
|
25 | 23 2 24 | mp3an23 | |
26 | 10 25 | syl | |
27 | mulcom | |
|
28 | 10 23 27 | sylancl | |
29 | 23 9 | divreczi | |
30 | 28 29 | eqtr4d | |
31 | 30 | oveq1d | |
32 | 26 31 | eqtr3d | |
33 | 32 | adantr | |
34 | 22 33 | eqtr3d | |
35 | 34 | ex | |
36 | 23 9 | divclzi | |
37 | 2 | elexi | |
38 | 37 | snss | |
39 | 2 38 | mpbi | |
40 | occl | |
|
41 | 39 40 | ax-mp | |
42 | 41 | choccli | |
43 | 42 | chshii | |
44 | h1did | |
|
45 | 2 44 | ax-mp | |
46 | shmulcl | |
|
47 | 43 45 46 | mp3an13 | |
48 | 36 47 | syl | |
49 | eleq1 | |
|
50 | 48 49 | syl5ibrcom | |
51 | 35 50 | impbid | |
52 | 5 51 | sylbir | |