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Description: Lemma for pgpfac1 . (Contributed by Mario Carneiro, 27-Apr-2016)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | pgpfac1.k | ⊢ 𝐾 = ( mrCls ‘ ( SubGrp ‘ 𝐺 ) ) | |
| pgpfac1.s | ⊢ 𝑆 = ( 𝐾 ‘ { 𝐴 } ) | ||
| pgpfac1.b | ⊢ 𝐵 = ( Base ‘ 𝐺 ) | ||
| pgpfac1.o | ⊢ 𝑂 = ( od ‘ 𝐺 ) | ||
| pgpfac1.e | ⊢ 𝐸 = ( gEx ‘ 𝐺 ) | ||
| pgpfac1.z | ⊢ 0 = ( 0g ‘ 𝐺 ) | ||
| pgpfac1.l | ⊢ ⊕ = ( LSSum ‘ 𝐺 ) | ||
| pgpfac1.p | ⊢ ( 𝜑 → 𝑃 pGrp 𝐺 ) | ||
| pgpfac1.g | ⊢ ( 𝜑 → 𝐺 ∈ Abel ) | ||
| pgpfac1.n | ⊢ ( 𝜑 → 𝐵 ∈ Fin ) | ||
| pgpfac1.oe | ⊢ ( 𝜑 → ( 𝑂 ‘ 𝐴 ) = 𝐸 ) | ||
| pgpfac1.u | ⊢ ( 𝜑 → 𝑈 ∈ ( SubGrp ‘ 𝐺 ) ) | ||
| pgpfac1.au | ⊢ ( 𝜑 → 𝐴 ∈ 𝑈 ) | ||
| pgpfac1.w | ⊢ ( 𝜑 → 𝑊 ∈ ( SubGrp ‘ 𝐺 ) ) | ||
| pgpfac1.i | ⊢ ( 𝜑 → ( 𝑆 ∩ 𝑊 ) = { 0 } ) | ||
| pgpfac1.ss | ⊢ ( 𝜑 → ( 𝑆 ⊕ 𝑊 ) ⊆ 𝑈 ) | ||
| pgpfac1.2 | ⊢ ( 𝜑 → ∀ 𝑤 ∈ ( SubGrp ‘ 𝐺 ) ( ( 𝑤 ⊊ 𝑈 ∧ 𝐴 ∈ 𝑤 ) → ¬ ( 𝑆 ⊕ 𝑊 ) ⊊ 𝑤 ) ) | ||
| pgpfac1.c | ⊢ ( 𝜑 → 𝐶 ∈ ( 𝑈 ∖ ( 𝑆 ⊕ 𝑊 ) ) ) | ||
| pgpfac1.mg | ⊢ · = ( .g ‘ 𝐺 ) | ||
| Assertion | pgpfac1lem2 | ⊢ ( 𝜑 → ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pgpfac1.k | ⊢ 𝐾 = ( mrCls ‘ ( SubGrp ‘ 𝐺 ) ) | |
| 2 | pgpfac1.s | ⊢ 𝑆 = ( 𝐾 ‘ { 𝐴 } ) | |
| 3 | pgpfac1.b | ⊢ 𝐵 = ( Base ‘ 𝐺 ) | |
| 4 | pgpfac1.o | ⊢ 𝑂 = ( od ‘ 𝐺 ) | |
| 5 | pgpfac1.e | ⊢ 𝐸 = ( gEx ‘ 𝐺 ) | |
| 6 | pgpfac1.z | ⊢ 0 = ( 0g ‘ 𝐺 ) | |
| 7 | pgpfac1.l | ⊢ ⊕ = ( LSSum ‘ 𝐺 ) | |
| 8 | pgpfac1.p | ⊢ ( 𝜑 → 𝑃 pGrp 𝐺 ) | |
| 9 | pgpfac1.g | ⊢ ( 𝜑 → 𝐺 ∈ Abel ) | |
| 10 | pgpfac1.n | ⊢ ( 𝜑 → 𝐵 ∈ Fin ) | |
| 11 | pgpfac1.oe | ⊢ ( 𝜑 → ( 𝑂 ‘ 𝐴 ) = 𝐸 ) | |
| 12 | pgpfac1.u | ⊢ ( 𝜑 → 𝑈 ∈ ( SubGrp ‘ 𝐺 ) ) | |
| 13 | pgpfac1.au | ⊢ ( 𝜑 → 𝐴 ∈ 𝑈 ) | |
| 14 | pgpfac1.w | ⊢ ( 𝜑 → 𝑊 ∈ ( SubGrp ‘ 𝐺 ) ) | |
| 15 | pgpfac1.i | ⊢ ( 𝜑 → ( 𝑆 ∩ 𝑊 ) = { 0 } ) | |
| 16 | pgpfac1.ss | ⊢ ( 𝜑 → ( 𝑆 ⊕ 𝑊 ) ⊆ 𝑈 ) | |
| 17 | pgpfac1.2 | ⊢ ( 𝜑 → ∀ 𝑤 ∈ ( SubGrp ‘ 𝐺 ) ( ( 𝑤 ⊊ 𝑈 ∧ 𝐴 ∈ 𝑤 ) → ¬ ( 𝑆 ⊕ 𝑊 ) ⊊ 𝑤 ) ) | |
| 18 | pgpfac1.c | ⊢ ( 𝜑 → 𝐶 ∈ ( 𝑈 ∖ ( 𝑆 ⊕ 𝑊 ) ) ) | |
| 19 | pgpfac1.mg | ⊢ · = ( .g ‘ 𝐺 ) | |
| 20 | 18 | eldifbd | ⊢ ( 𝜑 → ¬ 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) |
| 21 | 18 | eldifad | ⊢ ( 𝜑 → 𝐶 ∈ 𝑈 ) |
| 22 | 21 | adantr | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝐶 ∈ 𝑈 ) |
| 23 | pgpprm | ⊢ ( 𝑃 pGrp 𝐺 → 𝑃 ∈ ℙ ) | |
| 24 | 8 23 | syl | ⊢ ( 𝜑 → 𝑃 ∈ ℙ ) |
| 25 | prmz | ⊢ ( 𝑃 ∈ ℙ → 𝑃 ∈ ℤ ) | |
| 26 | 24 25 | syl | ⊢ ( 𝜑 → 𝑃 ∈ ℤ ) |
| 27 | 19 | subgmulgcl | ⊢ ( ( 𝑈 ∈ ( SubGrp ‘ 𝐺 ) ∧ 𝑃 ∈ ℤ ∧ 𝐶 ∈ 𝑈 ) → ( 𝑃 · 𝐶 ) ∈ 𝑈 ) |
| 28 | 12 26 21 27 | syl3anc | ⊢ ( 𝜑 → ( 𝑃 · 𝐶 ) ∈ 𝑈 ) |
| 29 | 28 | adantr | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑃 · 𝐶 ) ∈ 𝑈 ) |
| 30 | simpr | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) | |
| 31 | 29 30 | eldifd | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑃 · 𝐶 ) ∈ ( 𝑈 ∖ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 32 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | pgpfac1lem1 | ⊢ ( ( 𝜑 ∧ ( 𝑃 · 𝐶 ) ∈ ( 𝑈 ∖ ( 𝑆 ⊕ 𝑊 ) ) ) → ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) = 𝑈 ) |
| 33 | 31 32 | syldan | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) = 𝑈 ) |
| 34 | 22 33 | eleqtrrd | ⊢ ( ( 𝜑 ∧ ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝐶 ∈ ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) ) |
| 35 | 34 | ex | ⊢ ( 𝜑 → ( ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) ) ) |
| 36 | eqid | ⊢ ( -g ‘ 𝐺 ) = ( -g ‘ 𝐺 ) | |
| 37 | ablgrp | ⊢ ( 𝐺 ∈ Abel → 𝐺 ∈ Grp ) | |
| 38 | 9 37 | syl | ⊢ ( 𝜑 → 𝐺 ∈ Grp ) |
| 39 | 3 | subgacs | ⊢ ( 𝐺 ∈ Grp → ( SubGrp ‘ 𝐺 ) ∈ ( ACS ‘ 𝐵 ) ) |
| 40 | 38 39 | syl | ⊢ ( 𝜑 → ( SubGrp ‘ 𝐺 ) ∈ ( ACS ‘ 𝐵 ) ) |
| 41 | 40 | acsmred | ⊢ ( 𝜑 → ( SubGrp ‘ 𝐺 ) ∈ ( Moore ‘ 𝐵 ) ) |
| 42 | 3 | subgss | ⊢ ( 𝑈 ∈ ( SubGrp ‘ 𝐺 ) → 𝑈 ⊆ 𝐵 ) |
| 43 | 12 42 | syl | ⊢ ( 𝜑 → 𝑈 ⊆ 𝐵 ) |
| 44 | 43 13 | sseldd | ⊢ ( 𝜑 → 𝐴 ∈ 𝐵 ) |
| 45 | 1 | mrcsncl | ⊢ ( ( ( SubGrp ‘ 𝐺 ) ∈ ( Moore ‘ 𝐵 ) ∧ 𝐴 ∈ 𝐵 ) → ( 𝐾 ‘ { 𝐴 } ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 46 | 41 44 45 | syl2anc | ⊢ ( 𝜑 → ( 𝐾 ‘ { 𝐴 } ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 47 | 2 46 | eqeltrid | ⊢ ( 𝜑 → 𝑆 ∈ ( SubGrp ‘ 𝐺 ) ) |
| 48 | 7 | lsmsubg2 | ⊢ ( ( 𝐺 ∈ Abel ∧ 𝑆 ∈ ( SubGrp ‘ 𝐺 ) ∧ 𝑊 ∈ ( SubGrp ‘ 𝐺 ) ) → ( 𝑆 ⊕ 𝑊 ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 49 | 9 47 14 48 | syl3anc | ⊢ ( 𝜑 → ( 𝑆 ⊕ 𝑊 ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 50 | 43 28 | sseldd | ⊢ ( 𝜑 → ( 𝑃 · 𝐶 ) ∈ 𝐵 ) |
| 51 | 1 | mrcsncl | ⊢ ( ( ( SubGrp ‘ 𝐺 ) ∈ ( Moore ‘ 𝐵 ) ∧ ( 𝑃 · 𝐶 ) ∈ 𝐵 ) → ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 52 | 41 50 51 | syl2anc | ⊢ ( 𝜑 → ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 53 | 36 7 49 52 | lsmelvalm | ⊢ ( 𝜑 → ( 𝐶 ∈ ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) ↔ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ∃ 𝑡 ∈ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ) ) |
| 54 | eqid | ⊢ ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) | |
| 55 | 3 19 54 1 | cycsubg2 | ⊢ ( ( 𝐺 ∈ Grp ∧ ( 𝑃 · 𝐶 ) ∈ 𝐵 ) → ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) = ran ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) |
| 56 | 38 50 55 | syl2anc | ⊢ ( 𝜑 → ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) = ran ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) |
| 57 | 56 | rexeqdv | ⊢ ( 𝜑 → ( ∃ 𝑡 ∈ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ ∃ 𝑡 ∈ ran ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ) ) |
| 58 | ovex | ⊢ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ V | |
| 59 | 58 | rgenw | ⊢ ∀ 𝑘 ∈ ℤ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ V |
| 60 | oveq2 | ⊢ ( 𝑡 = ( 𝑘 · ( 𝑃 · 𝐶 ) ) → ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) | |
| 61 | 60 | eqeq2d | ⊢ ( 𝑡 = ( 𝑘 · ( 𝑃 · 𝐶 ) ) → ( 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) ) |
| 62 | 54 61 | rexrnmptw | ⊢ ( ∀ 𝑘 ∈ ℤ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ V → ( ∃ 𝑡 ∈ ran ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) ) |
| 63 | 59 62 | mp1i | ⊢ ( 𝜑 → ( ∃ 𝑡 ∈ ran ( 𝑘 ∈ ℤ ↦ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) ) |
| 64 | 57 63 | bitrd | ⊢ ( 𝜑 → ( ∃ 𝑡 ∈ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) ) |
| 65 | 64 | rexbidv | ⊢ ( 𝜑 → ( ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ∃ 𝑡 ∈ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) 𝑡 ) ↔ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) ) |
| 66 | rexcom | ⊢ ( ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ∃ 𝑘 ∈ ℤ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) | |
| 67 | 38 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝐺 ∈ Grp ) |
| 68 | 16 43 | sstrd | ⊢ ( 𝜑 → ( 𝑆 ⊕ 𝑊 ) ⊆ 𝐵 ) |
| 69 | 68 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑆 ⊕ 𝑊 ) ⊆ 𝐵 ) |
| 70 | 69 | sselda | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝑠 ∈ 𝐵 ) |
| 71 | simplr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝑘 ∈ ℤ ) | |
| 72 | 50 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑃 · 𝐶 ) ∈ 𝐵 ) |
| 73 | 3 19 | mulgcl | ⊢ ( ( 𝐺 ∈ Grp ∧ 𝑘 ∈ ℤ ∧ ( 𝑃 · 𝐶 ) ∈ 𝐵 ) → ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ 𝐵 ) |
| 74 | 67 71 72 73 | syl3anc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ 𝐵 ) |
| 75 | 43 21 | sseldd | ⊢ ( 𝜑 → 𝐶 ∈ 𝐵 ) |
| 76 | 75 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝐶 ∈ 𝐵 ) |
| 77 | eqid | ⊢ ( +g ‘ 𝐺 ) = ( +g ‘ 𝐺 ) | |
| 78 | 3 77 36 | grpsubadd | ⊢ ( ( 𝐺 ∈ Grp ∧ ( 𝑠 ∈ 𝐵 ∧ ( 𝑘 · ( 𝑃 · 𝐶 ) ) ∈ 𝐵 ∧ 𝐶 ∈ 𝐵 ) ) → ( ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝐶 ↔ ( 𝐶 ( +g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝑠 ) ) |
| 79 | 67 70 74 76 78 | syl13anc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝐶 ↔ ( 𝐶 ( +g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝑠 ) ) |
| 80 | 1zzd | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 1 ∈ ℤ ) | |
| 81 | 26 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → 𝑃 ∈ ℤ ) |
| 82 | 71 81 | zmulcld | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑘 · 𝑃 ) ∈ ℤ ) |
| 83 | 3 19 77 | mulgdir | ⊢ ( ( 𝐺 ∈ Grp ∧ ( 1 ∈ ℤ ∧ ( 𝑘 · 𝑃 ) ∈ ℤ ∧ 𝐶 ∈ 𝐵 ) ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = ( ( 1 · 𝐶 ) ( +g ‘ 𝐺 ) ( ( 𝑘 · 𝑃 ) · 𝐶 ) ) ) |
| 84 | 67 80 82 76 83 | syl13anc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = ( ( 1 · 𝐶 ) ( +g ‘ 𝐺 ) ( ( 𝑘 · 𝑃 ) · 𝐶 ) ) ) |
| 85 | 3 19 | mulg1 | ⊢ ( 𝐶 ∈ 𝐵 → ( 1 · 𝐶 ) = 𝐶 ) |
| 86 | 76 85 | syl | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 1 · 𝐶 ) = 𝐶 ) |
| 87 | 3 19 | mulgass | ⊢ ( ( 𝐺 ∈ Grp ∧ ( 𝑘 ∈ ℤ ∧ 𝑃 ∈ ℤ ∧ 𝐶 ∈ 𝐵 ) ) → ( ( 𝑘 · 𝑃 ) · 𝐶 ) = ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) |
| 88 | 67 71 81 76 87 | syl13anc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 𝑘 · 𝑃 ) · 𝐶 ) = ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) |
| 89 | 86 88 | oveq12d | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 1 · 𝐶 ) ( +g ‘ 𝐺 ) ( ( 𝑘 · 𝑃 ) · 𝐶 ) ) = ( 𝐶 ( +g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) |
| 90 | 84 89 | eqtrd | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = ( 𝐶 ( +g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ) |
| 91 | 90 | eqeq1d | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = 𝑠 ↔ ( 𝐶 ( +g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝑠 ) ) |
| 92 | 79 91 | bitr4d | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝐶 ↔ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = 𝑠 ) ) |
| 93 | eqcom | ⊢ ( 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) = 𝐶 ) | |
| 94 | eqcom | ⊢ ( 𝑠 = ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ↔ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) = 𝑠 ) | |
| 95 | 92 93 94 | 3bitr4g | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ 𝑠 = ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ) |
| 96 | 95 | rexbidva | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝑠 = ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ) |
| 97 | risset | ⊢ ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ↔ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝑠 = ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) | |
| 98 | 96 97 | bitr4di | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 99 | 98 | rexbidva | ⊢ ( 𝜑 → ( ∃ 𝑘 ∈ ℤ ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ∃ 𝑘 ∈ ℤ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 100 | 66 99 | bitrid | ⊢ ( 𝜑 → ( ∃ 𝑠 ∈ ( 𝑆 ⊕ 𝑊 ) ∃ 𝑘 ∈ ℤ 𝐶 = ( 𝑠 ( -g ‘ 𝐺 ) ( 𝑘 · ( 𝑃 · 𝐶 ) ) ) ↔ ∃ 𝑘 ∈ ℤ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 101 | 53 65 100 | 3bitrd | ⊢ ( 𝜑 → ( 𝐶 ∈ ( ( 𝑆 ⊕ 𝑊 ) ⊕ ( 𝐾 ‘ { ( 𝑃 · 𝐶 ) } ) ) ↔ ∃ 𝑘 ∈ ℤ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 102 | 35 101 | sylibd | ⊢ ( 𝜑 → ( ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → ∃ 𝑘 ∈ ℤ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 103 | 38 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → 𝐺 ∈ Grp ) |
| 104 | 75 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → 𝐶 ∈ 𝐵 ) |
| 105 | 1z | ⊢ 1 ∈ ℤ | |
| 106 | id | ⊢ ( 𝑘 ∈ ℤ → 𝑘 ∈ ℤ ) | |
| 107 | zmulcl | ⊢ ( ( 𝑘 ∈ ℤ ∧ 𝑃 ∈ ℤ ) → ( 𝑘 · 𝑃 ) ∈ ℤ ) | |
| 108 | 106 26 107 | syl2anr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑘 · 𝑃 ) ∈ ℤ ) |
| 109 | zaddcl | ⊢ ( ( 1 ∈ ℤ ∧ ( 𝑘 · 𝑃 ) ∈ ℤ ) → ( 1 + ( 𝑘 · 𝑃 ) ) ∈ ℤ ) | |
| 110 | 105 108 109 | sylancr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 1 + ( 𝑘 · 𝑃 ) ) ∈ ℤ ) |
| 111 | 3 4 | odcl | ⊢ ( 𝐶 ∈ 𝐵 → ( 𝑂 ‘ 𝐶 ) ∈ ℕ0 ) |
| 112 | 104 111 | syl | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑂 ‘ 𝐶 ) ∈ ℕ0 ) |
| 113 | 112 | nn0zd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑂 ‘ 𝐶 ) ∈ ℤ ) |
| 114 | hashcl | ⊢ ( 𝐵 ∈ Fin → ( ♯ ‘ 𝐵 ) ∈ ℕ0 ) | |
| 115 | 10 114 | syl | ⊢ ( 𝜑 → ( ♯ ‘ 𝐵 ) ∈ ℕ0 ) |
| 116 | 115 | nn0zd | ⊢ ( 𝜑 → ( ♯ ‘ 𝐵 ) ∈ ℤ ) |
| 117 | 116 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ♯ ‘ 𝐵 ) ∈ ℤ ) |
| 118 | 110 117 | gcdcomd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( ♯ ‘ 𝐵 ) ) = ( ( ♯ ‘ 𝐵 ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) ) |
| 119 | 3 | pgphash | ⊢ ( ( 𝑃 pGrp 𝐺 ∧ 𝐵 ∈ Fin ) → ( ♯ ‘ 𝐵 ) = ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) ) |
| 120 | 8 10 119 | syl2anc | ⊢ ( 𝜑 → ( ♯ ‘ 𝐵 ) = ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) ) |
| 121 | 120 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ♯ ‘ 𝐵 ) = ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) ) |
| 122 | 121 | oveq1d | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( ♯ ‘ 𝐵 ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = ( ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) ) |
| 123 | simpr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → 𝑘 ∈ ℤ ) | |
| 124 | 26 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → 𝑃 ∈ ℤ ) |
| 125 | 1zzd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → 1 ∈ ℤ ) | |
| 126 | gcdaddm | ⊢ ( ( 𝑘 ∈ ℤ ∧ 𝑃 ∈ ℤ ∧ 1 ∈ ℤ ) → ( 𝑃 gcd 1 ) = ( 𝑃 gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) ) | |
| 127 | 123 124 125 126 | syl3anc | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑃 gcd 1 ) = ( 𝑃 gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) ) |
| 128 | gcd1 | ⊢ ( 𝑃 ∈ ℤ → ( 𝑃 gcd 1 ) = 1 ) | |
| 129 | 124 128 | syl | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑃 gcd 1 ) = 1 ) |
| 130 | 127 129 | eqtr3d | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑃 gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 ) |
| 131 | 3 | grpbn0 | ⊢ ( 𝐺 ∈ Grp → 𝐵 ≠ ∅ ) |
| 132 | 38 131 | syl | ⊢ ( 𝜑 → 𝐵 ≠ ∅ ) |
| 133 | hashnncl | ⊢ ( 𝐵 ∈ Fin → ( ( ♯ ‘ 𝐵 ) ∈ ℕ ↔ 𝐵 ≠ ∅ ) ) | |
| 134 | 10 133 | syl | ⊢ ( 𝜑 → ( ( ♯ ‘ 𝐵 ) ∈ ℕ ↔ 𝐵 ≠ ∅ ) ) |
| 135 | 132 134 | mpbird | ⊢ ( 𝜑 → ( ♯ ‘ 𝐵 ) ∈ ℕ ) |
| 136 | 24 135 | pccld | ⊢ ( 𝜑 → ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ∈ ℕ0 ) |
| 137 | 136 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ∈ ℕ0 ) |
| 138 | rpexp1i | ⊢ ( ( 𝑃 ∈ ℤ ∧ ( 1 + ( 𝑘 · 𝑃 ) ) ∈ ℤ ∧ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ∈ ℕ0 ) → ( ( 𝑃 gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 → ( ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 ) ) | |
| 139 | 124 110 137 138 | syl3anc | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( 𝑃 gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 → ( ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 ) ) |
| 140 | 130 139 | mpd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( 𝑃 ↑ ( 𝑃 pCnt ( ♯ ‘ 𝐵 ) ) ) gcd ( 1 + ( 𝑘 · 𝑃 ) ) ) = 1 ) |
| 141 | 118 122 140 | 3eqtrd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( ♯ ‘ 𝐵 ) ) = 1 ) |
| 142 | 3 4 | oddvds2 | ⊢ ( ( 𝐺 ∈ Grp ∧ 𝐵 ∈ Fin ∧ 𝐶 ∈ 𝐵 ) → ( 𝑂 ‘ 𝐶 ) ∥ ( ♯ ‘ 𝐵 ) ) |
| 143 | 38 10 75 142 | syl3anc | ⊢ ( 𝜑 → ( 𝑂 ‘ 𝐶 ) ∥ ( ♯ ‘ 𝐵 ) ) |
| 144 | 143 | adantr | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( 𝑂 ‘ 𝐶 ) ∥ ( ♯ ‘ 𝐵 ) ) |
| 145 | rpdvds | ⊢ ( ( ( ( 1 + ( 𝑘 · 𝑃 ) ) ∈ ℤ ∧ ( 𝑂 ‘ 𝐶 ) ∈ ℤ ∧ ( ♯ ‘ 𝐵 ) ∈ ℤ ) ∧ ( ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( ♯ ‘ 𝐵 ) ) = 1 ∧ ( 𝑂 ‘ 𝐶 ) ∥ ( ♯ ‘ 𝐵 ) ) ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( 𝑂 ‘ 𝐶 ) ) = 1 ) | |
| 146 | 110 113 117 141 144 145 | syl32anc | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( 𝑂 ‘ 𝐶 ) ) = 1 ) |
| 147 | 3 4 19 | odbezout | ⊢ ( ( ( 𝐺 ∈ Grp ∧ 𝐶 ∈ 𝐵 ∧ ( 1 + ( 𝑘 · 𝑃 ) ) ∈ ℤ ) ∧ ( ( 1 + ( 𝑘 · 𝑃 ) ) gcd ( 𝑂 ‘ 𝐶 ) ) = 1 ) → ∃ 𝑎 ∈ ℤ ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 ) |
| 148 | 103 104 110 146 147 | syl31anc | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ∃ 𝑎 ∈ ℤ ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 ) |
| 149 | 49 | ad2antrr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑎 ∈ ℤ ) → ( 𝑆 ⊕ 𝑊 ) ∈ ( SubGrp ‘ 𝐺 ) ) |
| 150 | simpr | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑎 ∈ ℤ ) → 𝑎 ∈ ℤ ) | |
| 151 | 19 | subgmulgcl | ⊢ ( ( ( 𝑆 ⊕ 𝑊 ) ∈ ( SubGrp ‘ 𝐺 ) ∧ 𝑎 ∈ ℤ ∧ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) → ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ∈ ( 𝑆 ⊕ 𝑊 ) ) |
| 152 | 151 | 3expia | ⊢ ( ( ( 𝑆 ⊕ 𝑊 ) ∈ ( SubGrp ‘ 𝐺 ) ∧ 𝑎 ∈ ℤ ) → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 153 | 149 150 152 | syl2anc | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑎 ∈ ℤ ) → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 154 | eleq1 | ⊢ ( ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 → ( ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ∈ ( 𝑆 ⊕ 𝑊 ) ↔ 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) | |
| 155 | 154 | imbi2d | ⊢ ( ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 → ( ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) ∈ ( 𝑆 ⊕ 𝑊 ) ) ↔ ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) ) |
| 156 | 153 155 | syl5ibcom | ⊢ ( ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) ∧ 𝑎 ∈ ℤ ) → ( ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) ) |
| 157 | 156 | rexlimdva | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ∃ 𝑎 ∈ ℤ ( 𝑎 · ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ) = 𝐶 → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) ) |
| 158 | 148 157 | mpd | ⊢ ( ( 𝜑 ∧ 𝑘 ∈ ℤ ) → ( ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 159 | 158 | rexlimdva | ⊢ ( 𝜑 → ( ∃ 𝑘 ∈ ℤ ( ( 1 + ( 𝑘 · 𝑃 ) ) · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 160 | 102 159 | syld | ⊢ ( 𝜑 → ( ¬ ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) → 𝐶 ∈ ( 𝑆 ⊕ 𝑊 ) ) ) |
| 161 | 20 160 | mt3d | ⊢ ( 𝜑 → ( 𝑃 · 𝐶 ) ∈ ( 𝑆 ⊕ 𝑊 ) ) |