Description: An element covering an atom is a lattice line and vice-versa. (Contributed by NM, 18-Jun-2012)
Ref | Expression | ||
---|---|---|---|
Hypotheses | atcvrlln.b | |
|
atcvrlln.c | |
||
atcvrlln.a | |
||
atcvrlln.n | |
||
Assertion | atcvrlln | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | atcvrlln.b | |
|
2 | atcvrlln.c | |
|
3 | atcvrlln.a | |
|
4 | atcvrlln.n | |
|
5 | simpll1 | |
|
6 | simpll3 | |
|
7 | simpr | |
|
8 | simplr | |
|
9 | 1 2 3 4 | llni | |
10 | 5 6 7 8 9 | syl31anc | |
11 | simpr | |
|
12 | simpll1 | |
|
13 | simpll3 | |
|
14 | eqid | |
|
15 | 1 14 3 4 | islln3 | |
16 | 12 13 15 | syl2anc | |
17 | 11 16 | mpbid | |
18 | simp1l1 | |
|
19 | simp1l2 | |
|
20 | simp2l | |
|
21 | simp2r | |
|
22 | simp3l | |
|
23 | simp1r | |
|
24 | simp3r | |
|
25 | 23 24 | breqtrd | |
26 | 1 14 2 3 | cvrat2 | |
27 | 18 19 20 21 22 25 26 | syl132anc | |
28 | 27 | 3exp | |
29 | 28 | rexlimdvv | |
30 | 29 | adantr | |
31 | 17 30 | mpd | |
32 | 10 31 | impbida | |