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Theorem cvlsupr2 34110
Description: Two equivalent ways of expressing that 𝑅 is a superposition of 𝑃 and 𝑄. (Contributed by NM, 5-Nov-2012.)
Hypotheses
Ref Expression
cvlsupr2.a 𝐴 = (Atoms‘𝐾)
cvlsupr2.l = (le‘𝐾)
cvlsupr2.j = (join‘𝐾)
Assertion
Ref Expression
cvlsupr2 ((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))))

Proof of Theorem cvlsupr2
StepHypRef Expression
1 simpl3 1064 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑃𝑄)
21necomd 2845 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑄𝑃)
3 simplr 791 . . . . . . . . 9 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑃) → (𝑃 𝑅) = (𝑄 𝑅))
4 oveq2 6612 . . . . . . . . . . . 12 (𝑅 = 𝑃 → (𝑃 𝑅) = (𝑃 𝑃))
5 oveq2 6612 . . . . . . . . . . . 12 (𝑅 = 𝑃 → (𝑄 𝑅) = (𝑄 𝑃))
64, 5eqeq12d 2636 . . . . . . . . . . 11 (𝑅 = 𝑃 → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑃 𝑃) = (𝑄 𝑃)))
7 eqcom 2628 . . . . . . . . . . 11 ((𝑃 𝑃) = (𝑄 𝑃) ↔ (𝑄 𝑃) = (𝑃 𝑃))
86, 7syl6bb 276 . . . . . . . . . 10 (𝑅 = 𝑃 → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑄 𝑃) = (𝑃 𝑃)))
98adantl 482 . . . . . . . . 9 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑃) → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑄 𝑃) = (𝑃 𝑃)))
103, 9mpbid 222 . . . . . . . 8 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑃) → (𝑄 𝑃) = (𝑃 𝑃))
11 simpl1 1062 . . . . . . . . . . 11 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝐾 ∈ CvLat)
12 cvllat 34093 . . . . . . . . . . 11 (𝐾 ∈ CvLat → 𝐾 ∈ Lat)
1311, 12syl 17 . . . . . . . . . 10 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝐾 ∈ Lat)
14 simpl21 1137 . . . . . . . . . . 11 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑃𝐴)
15 eqid 2621 . . . . . . . . . . . 12 (Base‘𝐾) = (Base‘𝐾)
16 cvlsupr2.a . . . . . . . . . . . 12 𝐴 = (Atoms‘𝐾)
1715, 16atbase 34056 . . . . . . . . . . 11 (𝑃𝐴𝑃 ∈ (Base‘𝐾))
1814, 17syl 17 . . . . . . . . . 10 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑃 ∈ (Base‘𝐾))
19 cvlsupr2.j . . . . . . . . . . 11 = (join‘𝐾)
2015, 19latjidm 16995 . . . . . . . . . 10 ((𝐾 ∈ Lat ∧ 𝑃 ∈ (Base‘𝐾)) → (𝑃 𝑃) = 𝑃)
2113, 18, 20syl2anc 692 . . . . . . . . 9 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑃 𝑃) = 𝑃)
2221adantr 481 . . . . . . . 8 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑃) → (𝑃 𝑃) = 𝑃)
2310, 22eqtrd 2655 . . . . . . 7 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑃) → (𝑄 𝑃) = 𝑃)
2423ex 450 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑅 = 𝑃 → (𝑄 𝑃) = 𝑃))
25 simpl22 1138 . . . . . . . . 9 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑄𝐴)
2615, 16atbase 34056 . . . . . . . . 9 (𝑄𝐴𝑄 ∈ (Base‘𝐾))
2725, 26syl 17 . . . . . . . 8 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑄 ∈ (Base‘𝐾))
28 cvlsupr2.l . . . . . . . . 9 = (le‘𝐾)
2915, 28, 19latleeqj1 16984 . . . . . . . 8 ((𝐾 ∈ Lat ∧ 𝑄 ∈ (Base‘𝐾) ∧ 𝑃 ∈ (Base‘𝐾)) → (𝑄 𝑃 ↔ (𝑄 𝑃) = 𝑃))
3013, 27, 18, 29syl3anc 1323 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑄 𝑃 ↔ (𝑄 𝑃) = 𝑃))
31 cvlatl 34092 . . . . . . . . 9 (𝐾 ∈ CvLat → 𝐾 ∈ AtLat)
3211, 31syl 17 . . . . . . . 8 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝐾 ∈ AtLat)
3328, 16atcmp 34078 . . . . . . . 8 ((𝐾 ∈ AtLat ∧ 𝑄𝐴𝑃𝐴) → (𝑄 𝑃𝑄 = 𝑃))
3432, 25, 14, 33syl3anc 1323 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑄 𝑃𝑄 = 𝑃))
3530, 34bitr3d 270 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → ((𝑄 𝑃) = 𝑃𝑄 = 𝑃))
3624, 35sylibd 229 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑅 = 𝑃𝑄 = 𝑃))
3736necon3d 2811 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑄𝑃𝑅𝑃))
382, 37mpd 15 . . 3 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑅𝑃)
39 simplr 791 . . . . . . . . 9 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑄) → (𝑃 𝑅) = (𝑄 𝑅))
40 oveq2 6612 . . . . . . . . . . 11 (𝑅 = 𝑄 → (𝑃 𝑅) = (𝑃 𝑄))
41 oveq2 6612 . . . . . . . . . . 11 (𝑅 = 𝑄 → (𝑄 𝑅) = (𝑄 𝑄))
4240, 41eqeq12d 2636 . . . . . . . . . 10 (𝑅 = 𝑄 → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑃 𝑄) = (𝑄 𝑄)))
4342adantl 482 . . . . . . . . 9 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑄) → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑃 𝑄) = (𝑄 𝑄)))
4439, 43mpbid 222 . . . . . . . 8 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑄) → (𝑃 𝑄) = (𝑄 𝑄))
4515, 19latjidm 16995 . . . . . . . . . 10 ((𝐾 ∈ Lat ∧ 𝑄 ∈ (Base‘𝐾)) → (𝑄 𝑄) = 𝑄)
4613, 27, 45syl2anc 692 . . . . . . . . 9 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑄 𝑄) = 𝑄)
4746adantr 481 . . . . . . . 8 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑄) → (𝑄 𝑄) = 𝑄)
4844, 47eqtrd 2655 . . . . . . 7 ((((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) ∧ 𝑅 = 𝑄) → (𝑃 𝑄) = 𝑄)
4948ex 450 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑅 = 𝑄 → (𝑃 𝑄) = 𝑄))
5015, 28, 19latleeqj1 16984 . . . . . . . 8 ((𝐾 ∈ Lat ∧ 𝑃 ∈ (Base‘𝐾) ∧ 𝑄 ∈ (Base‘𝐾)) → (𝑃 𝑄 ↔ (𝑃 𝑄) = 𝑄))
5113, 18, 27, 50syl3anc 1323 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑃 𝑄 ↔ (𝑃 𝑄) = 𝑄))
5228, 16atcmp 34078 . . . . . . . 8 ((𝐾 ∈ AtLat ∧ 𝑃𝐴𝑄𝐴) → (𝑃 𝑄𝑃 = 𝑄))
5332, 14, 25, 52syl3anc 1323 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑃 𝑄𝑃 = 𝑄))
5451, 53bitr3d 270 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → ((𝑃 𝑄) = 𝑄𝑃 = 𝑄))
5549, 54sylibd 229 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑅 = 𝑄𝑃 = 𝑄))
5655necon3d 2811 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑃𝑄𝑅𝑄))
571, 56mpd 15 . . 3 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑅𝑄)
58 simpl23 1139 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑅𝐴)
5915, 16atbase 34056 . . . . . . 7 (𝑅𝐴𝑅 ∈ (Base‘𝐾))
6058, 59syl 17 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑅 ∈ (Base‘𝐾))
6115, 28, 19latlej1 16981 . . . . . 6 ((𝐾 ∈ Lat ∧ 𝑄 ∈ (Base‘𝐾) ∧ 𝑅 ∈ (Base‘𝐾)) → 𝑄 (𝑄 𝑅))
6213, 27, 60, 61syl3anc 1323 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑄 (𝑄 𝑅))
63 simpr 477 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑃 𝑅) = (𝑄 𝑅))
6462, 63breqtrrd 4641 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑄 (𝑃 𝑅))
6528, 19, 16cvlatexch1 34103 . . . . 5 ((𝐾 ∈ CvLat ∧ (𝑄𝐴𝑅𝐴𝑃𝐴) ∧ 𝑄𝑃) → (𝑄 (𝑃 𝑅) → 𝑅 (𝑃 𝑄)))
6611, 25, 58, 14, 2, 65syl131anc 1336 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑄 (𝑃 𝑅) → 𝑅 (𝑃 𝑄)))
6764, 66mpd 15 . . 3 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → 𝑅 (𝑃 𝑄))
6838, 57, 673jca 1240 . 2 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑃 𝑅) = (𝑄 𝑅)) → (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄)))
69 simpr3 1067 . . 3 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑅 (𝑃 𝑄))
70 simpl1 1062 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝐾 ∈ CvLat)
7170, 12syl 17 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝐾 ∈ Lat)
72 simpl21 1137 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑃𝐴)
7372, 17syl 17 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑃 ∈ (Base‘𝐾))
74 simpl22 1138 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑄𝐴)
7574, 26syl 17 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑄 ∈ (Base‘𝐾))
7615, 19latjcom 16980 . . . . . 6 ((𝐾 ∈ Lat ∧ 𝑃 ∈ (Base‘𝐾) ∧ 𝑄 ∈ (Base‘𝐾)) → (𝑃 𝑄) = (𝑄 𝑃))
7771, 73, 75, 76syl3anc 1323 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑃 𝑄) = (𝑄 𝑃))
7877breq2d 4625 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑅 (𝑃 𝑄) ↔ 𝑅 (𝑄 𝑃)))
79 simpl23 1139 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑅𝐴)
80 simpr2 1066 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑅𝑄)
8128, 19, 16cvlatexch1 34103 . . . . . 6 ((𝐾 ∈ CvLat ∧ (𝑅𝐴𝑃𝐴𝑄𝐴) ∧ 𝑅𝑄) → (𝑅 (𝑄 𝑃) → 𝑃 (𝑄 𝑅)))
8270, 79, 72, 74, 80, 81syl131anc 1336 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑅 (𝑄 𝑃) → 𝑃 (𝑄 𝑅)))
83 simpr1 1065 . . . . . . 7 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑅𝑃)
8483necomd 2845 . . . . . 6 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → 𝑃𝑅)
8528, 19, 16cvlatexchb2 34102 . . . . . 6 ((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑅) → (𝑃 (𝑄 𝑅) ↔ (𝑃 𝑅) = (𝑄 𝑅)))
8670, 72, 74, 79, 84, 85syl131anc 1336 . . . . 5 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑃 (𝑄 𝑅) ↔ (𝑃 𝑅) = (𝑄 𝑅)))
8782, 86sylibd 229 . . . 4 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑅 (𝑄 𝑃) → (𝑃 𝑅) = (𝑄 𝑅)))
8878, 87sylbid 230 . . 3 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑅 (𝑃 𝑄) → (𝑃 𝑅) = (𝑄 𝑅)))
8969, 88mpd 15 . 2 (((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) ∧ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))) → (𝑃 𝑅) = (𝑄 𝑅))
9068, 89impbida 876 1 ((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ 𝑃𝑄) → ((𝑃 𝑅) = (𝑄 𝑅) ↔ (𝑅𝑃𝑅𝑄𝑅 (𝑃 𝑄))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 384  w3a 1036   = wceq 1480  wcel 1987  wne 2790   class class class wbr 4613  cfv 5847  (class class class)co 6604  Basecbs 15781  lecple 15869  joincjn 16865  Latclat 16966  Atomscatm 34030  AtLatcal 34031  CvLatclc 34032
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4731  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-op 4155  df-uni 4403  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-id 4989  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-riota 6565  df-ov 6607  df-oprab 6608  df-preset 16849  df-poset 16867  df-plt 16879  df-lub 16895  df-glb 16896  df-join 16897  df-meet 16898  df-p0 16960  df-lat 16967  df-covers 34033  df-ats 34034  df-atl 34065  df-cvlat 34089
This theorem is referenced by:  cvlsupr3  34111  cvlsupr4  34112  cvlsupr5  34113  cvlsupr6  34114  4atexlemex2  34837  4atex  34842  4atex3  34847  cdleme02N  34989  cdleme0ex2N  34991  cdleme0moN  34992  cdleme0nex  35057
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