Metamath Proof Explorer


Theorem dalem7

Description: Lemma for dath . Analogue of dalem5 for T . (Contributed by NM, 21-Jul-2012)

Ref Expression
Hypotheses dalema.ph ( 𝜑 ↔ ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑃𝐴𝑄𝐴𝑅𝐴 ) ∧ ( 𝑆𝐴𝑇𝐴𝑈𝐴 ) ) ∧ ( 𝑌𝑂𝑍𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑃 𝑄 ) ∧ ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ) ∧ ( ¬ 𝐶 ( 𝑆 𝑇 ) ∧ ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ) ∧ ( 𝐶 ( 𝑃 𝑆 ) ∧ 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ) ) ) )
dalemc.l = ( le ‘ 𝐾 )
dalemc.j = ( join ‘ 𝐾 )
dalemc.a 𝐴 = ( Atoms ‘ 𝐾 )
dalem6.o 𝑂 = ( LPlanes ‘ 𝐾 )
dalem6.y 𝑌 = ( ( 𝑃 𝑄 ) 𝑅 )
dalem6.z 𝑍 = ( ( 𝑆 𝑇 ) 𝑈 )
dalem6.w 𝑊 = ( 𝑌 𝐶 )
Assertion dalem7 ( 𝜑𝑇 𝑊 )

Proof

Step Hyp Ref Expression
1 dalema.ph ( 𝜑 ↔ ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑃𝐴𝑄𝐴𝑅𝐴 ) ∧ ( 𝑆𝐴𝑇𝐴𝑈𝐴 ) ) ∧ ( 𝑌𝑂𝑍𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑃 𝑄 ) ∧ ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ) ∧ ( ¬ 𝐶 ( 𝑆 𝑇 ) ∧ ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ) ∧ ( 𝐶 ( 𝑃 𝑆 ) ∧ 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ) ) ) )
2 dalemc.l = ( le ‘ 𝐾 )
3 dalemc.j = ( join ‘ 𝐾 )
4 dalemc.a 𝐴 = ( Atoms ‘ 𝐾 )
5 dalem6.o 𝑂 = ( LPlanes ‘ 𝐾 )
6 dalem6.y 𝑌 = ( ( 𝑃 𝑄 ) 𝑅 )
7 dalem6.z 𝑍 = ( ( 𝑆 𝑇 ) 𝑈 )
8 dalem6.w 𝑊 = ( 𝑌 𝐶 )
9 1 2 3 4 6 7 dalemrot ( 𝜑 → ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑄𝐴𝑅𝐴𝑃𝐴 ) ∧ ( 𝑇𝐴𝑈𝐴𝑆𝐴 ) ) ∧ ( ( ( 𝑄 𝑅 ) 𝑃 ) ∈ 𝑂 ∧ ( ( 𝑇 𝑈 ) 𝑆 ) ∈ 𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ∧ ¬ 𝐶 ( 𝑃 𝑄 ) ) ∧ ( ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ∧ ¬ 𝐶 ( 𝑆 𝑇 ) ) ∧ ( 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ∧ 𝐶 ( 𝑃 𝑆 ) ) ) ) )
10 biid ( ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑄𝐴𝑅𝐴𝑃𝐴 ) ∧ ( 𝑇𝐴𝑈𝐴𝑆𝐴 ) ) ∧ ( ( ( 𝑄 𝑅 ) 𝑃 ) ∈ 𝑂 ∧ ( ( 𝑇 𝑈 ) 𝑆 ) ∈ 𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ∧ ¬ 𝐶 ( 𝑃 𝑄 ) ) ∧ ( ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ∧ ¬ 𝐶 ( 𝑆 𝑇 ) ) ∧ ( 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ∧ 𝐶 ( 𝑃 𝑆 ) ) ) ) ↔ ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑄𝐴𝑅𝐴𝑃𝐴 ) ∧ ( 𝑇𝐴𝑈𝐴𝑆𝐴 ) ) ∧ ( ( ( 𝑄 𝑅 ) 𝑃 ) ∈ 𝑂 ∧ ( ( 𝑇 𝑈 ) 𝑆 ) ∈ 𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ∧ ¬ 𝐶 ( 𝑃 𝑄 ) ) ∧ ( ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ∧ ¬ 𝐶 ( 𝑆 𝑇 ) ) ∧ ( 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ∧ 𝐶 ( 𝑃 𝑆 ) ) ) ) )
11 eqid ( ( 𝑄 𝑅 ) 𝑃 ) = ( ( 𝑄 𝑅 ) 𝑃 )
12 eqid ( ( 𝑇 𝑈 ) 𝑆 ) = ( ( 𝑇 𝑈 ) 𝑆 )
13 eqid ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 ) = ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 )
14 10 2 3 4 5 11 12 13 dalem6 ( ( ( ( 𝐾 ∈ HL ∧ 𝐶 ∈ ( Base ‘ 𝐾 ) ) ∧ ( 𝑄𝐴𝑅𝐴𝑃𝐴 ) ∧ ( 𝑇𝐴𝑈𝐴𝑆𝐴 ) ) ∧ ( ( ( 𝑄 𝑅 ) 𝑃 ) ∈ 𝑂 ∧ ( ( 𝑇 𝑈 ) 𝑆 ) ∈ 𝑂 ) ∧ ( ( ¬ 𝐶 ( 𝑄 𝑅 ) ∧ ¬ 𝐶 ( 𝑅 𝑃 ) ∧ ¬ 𝐶 ( 𝑃 𝑄 ) ) ∧ ( ¬ 𝐶 ( 𝑇 𝑈 ) ∧ ¬ 𝐶 ( 𝑈 𝑆 ) ∧ ¬ 𝐶 ( 𝑆 𝑇 ) ) ∧ ( 𝐶 ( 𝑄 𝑇 ) ∧ 𝐶 ( 𝑅 𝑈 ) ∧ 𝐶 ( 𝑃 𝑆 ) ) ) ) → 𝑇 ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 ) )
15 9 14 syl ( 𝜑𝑇 ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 ) )
16 1 3 4 dalemqrprot ( 𝜑 → ( ( 𝑄 𝑅 ) 𝑃 ) = ( ( 𝑃 𝑄 ) 𝑅 ) )
17 6 16 eqtr4id ( 𝜑𝑌 = ( ( 𝑄 𝑅 ) 𝑃 ) )
18 17 oveq1d ( 𝜑 → ( 𝑌 𝐶 ) = ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 ) )
19 8 18 eqtrid ( 𝜑𝑊 = ( ( ( 𝑄 𝑅 ) 𝑃 ) 𝐶 ) )
20 15 19 breqtrrd ( 𝜑𝑇 𝑊 )