Metamath Proof Explorer


Theorem cdlemk19u1

Description: cdlemk19 with simpler hypotheses. TODO: Clean all this up. (Contributed by NM, 31-Jul-2013)

Ref Expression
Hypotheses cdlemk5.b 𝐵 = ( Base ‘ 𝐾 )
cdlemk5.l = ( le ‘ 𝐾 )
cdlemk5.j = ( join ‘ 𝐾 )
cdlemk5.m = ( meet ‘ 𝐾 )
cdlemk5.a 𝐴 = ( Atoms ‘ 𝐾 )
cdlemk5.h 𝐻 = ( LHyp ‘ 𝐾 )
cdlemk5.t 𝑇 = ( ( LTrn ‘ 𝐾 ) ‘ 𝑊 )
cdlemk5.r 𝑅 = ( ( trL ‘ 𝐾 ) ‘ 𝑊 )
cdlemk5.z 𝑍 = ( ( 𝑃 ( 𝑅𝑏 ) ) ( ( 𝑁𝑃 ) ( 𝑅 ‘ ( 𝑏 𝐹 ) ) ) )
cdlemk5.y 𝑌 = ( ( 𝑃 ( 𝑅𝑔 ) ) ( 𝑍 ( 𝑅 ‘ ( 𝑔 𝑏 ) ) ) )
cdlemk5.x 𝑋 = ( 𝑧𝑇𝑏𝑇 ( ( 𝑏 ≠ ( I ↾ 𝐵 ) ∧ ( 𝑅𝑏 ) ≠ ( 𝑅𝐹 ) ∧ ( 𝑅𝑏 ) ≠ ( 𝑅𝑔 ) ) → ( 𝑧𝑃 ) = 𝑌 ) )
cdlemk5.u 𝑈 = ( 𝑔𝑇 ↦ if ( 𝐹 = 𝑁 , 𝑔 , 𝑋 ) )
Assertion cdlemk19u1 ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( ( 𝑈𝐹 ) ‘ 𝑃 ) = ( 𝑁𝑃 ) )

Proof

Step Hyp Ref Expression
1 cdlemk5.b 𝐵 = ( Base ‘ 𝐾 )
2 cdlemk5.l = ( le ‘ 𝐾 )
3 cdlemk5.j = ( join ‘ 𝐾 )
4 cdlemk5.m = ( meet ‘ 𝐾 )
5 cdlemk5.a 𝐴 = ( Atoms ‘ 𝐾 )
6 cdlemk5.h 𝐻 = ( LHyp ‘ 𝐾 )
7 cdlemk5.t 𝑇 = ( ( LTrn ‘ 𝐾 ) ‘ 𝑊 )
8 cdlemk5.r 𝑅 = ( ( trL ‘ 𝐾 ) ‘ 𝑊 )
9 cdlemk5.z 𝑍 = ( ( 𝑃 ( 𝑅𝑏 ) ) ( ( 𝑁𝑃 ) ( 𝑅 ‘ ( 𝑏 𝐹 ) ) ) )
10 cdlemk5.y 𝑌 = ( ( 𝑃 ( 𝑅𝑔 ) ) ( 𝑍 ( 𝑅 ‘ ( 𝑔 𝑏 ) ) ) )
11 cdlemk5.x 𝑋 = ( 𝑧𝑇𝑏𝑇 ( ( 𝑏 ≠ ( I ↾ 𝐵 ) ∧ ( 𝑅𝑏 ) ≠ ( 𝑅𝐹 ) ∧ ( 𝑅𝑏 ) ≠ ( 𝑅𝑔 ) ) → ( 𝑧𝑃 ) = 𝑌 ) )
12 cdlemk5.u 𝑈 = ( 𝑔𝑇 ↦ if ( 𝐹 = 𝑁 , 𝑔 , 𝑋 ) )
13 simp22 ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → 𝐹𝑁 )
14 simp21 ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → 𝐹𝑇 )
15 11 12 cdlemk40f ( ( 𝐹𝑁𝐹𝑇 ) → ( 𝑈𝐹 ) = 𝐹 / 𝑔 𝑋 )
16 13 14 15 syl2anc ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝑈𝐹 ) = 𝐹 / 𝑔 𝑋 )
17 16 fveq1d ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( ( 𝑈𝐹 ) ‘ 𝑃 ) = ( 𝐹 / 𝑔 𝑋𝑃 ) )
18 simp1l ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) )
19 simp23 ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → 𝑁𝑇 )
20 simp1r ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝑅𝐹 ) = ( 𝑅𝑁 ) )
21 1 6 7 8 trlnid ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝐹𝑇𝑁𝑇 ) ∧ ( 𝐹𝑁 ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ) → 𝐹 ≠ ( I ↾ 𝐵 ) )
22 18 14 19 13 20 21 syl122anc ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → 𝐹 ≠ ( I ↾ 𝐵 ) )
23 14 22 19 3jca ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝐹𝑇𝐹 ≠ ( I ↾ 𝐵 ) ∧ 𝑁𝑇 ) )
24 1 2 3 4 5 6 7 8 9 10 11 cdlemk19x ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹 ≠ ( I ↾ 𝐵 ) ∧ 𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝐹 / 𝑔 𝑋𝑃 ) = ( 𝑁𝑃 ) )
25 23 24 syld3an2 ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( 𝐹 / 𝑔 𝑋𝑃 ) = ( 𝑁𝑃 ) )
26 17 25 eqtrd ( ( ( ( 𝐾 ∈ HL ∧ 𝑊𝐻 ) ∧ ( 𝑅𝐹 ) = ( 𝑅𝑁 ) ) ∧ ( 𝐹𝑇𝐹𝑁𝑁𝑇 ) ∧ ( 𝑃𝐴 ∧ ¬ 𝑃 𝑊 ) ) → ( ( 𝑈𝐹 ) ‘ 𝑃 ) = ( 𝑁𝑃 ) )