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Description: Lemma for mogoldbb . (Contributed by AV, 26-Dec-2021)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | mogoldbblem | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2evenALTV | ⊢ 2 ∈ Even | |
| 2 | epee | ⊢ ( ( 𝑁 ∈ Even ∧ 2 ∈ Even ) → ( 𝑁 + 2 ) ∈ Even ) | |
| 3 | 1 2 | mpan2 | ⊢ ( 𝑁 ∈ Even → ( 𝑁 + 2 ) ∈ Even ) |
| 4 | 3 | 3ad2ant2 | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑁 + 2 ) ∈ Even ) |
| 5 | simp1 | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ) | |
| 6 | simp3 | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) | |
| 7 | even3prm2 | ⊢ ( ( ( 𝑁 + 2 ) ∈ Even ∧ ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑃 = 2 ∨ 𝑄 = 2 ∨ 𝑅 = 2 ) ) | |
| 8 | 4 5 6 7 | syl3anc | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑃 = 2 ∨ 𝑄 = 2 ∨ 𝑅 = 2 ) ) |
| 9 | oveq1 | ⊢ ( 𝑃 = 2 → ( 𝑃 + 𝑄 ) = ( 2 + 𝑄 ) ) | |
| 10 | 9 | oveq1d | ⊢ ( 𝑃 = 2 → ( ( 𝑃 + 𝑄 ) + 𝑅 ) = ( ( 2 + 𝑄 ) + 𝑅 ) ) |
| 11 | 10 | eqeq2d | ⊢ ( 𝑃 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) ) ) |
| 12 | 2cnd | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 2 ∈ ℂ ) | |
| 13 | prmz | ⊢ ( 𝑄 ∈ ℙ → 𝑄 ∈ ℤ ) | |
| 14 | 13 | zcnd | ⊢ ( 𝑄 ∈ ℙ → 𝑄 ∈ ℂ ) |
| 15 | 14 | adantr | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 𝑄 ∈ ℂ ) |
| 16 | prmz | ⊢ ( 𝑅 ∈ ℙ → 𝑅 ∈ ℤ ) | |
| 17 | 16 | zcnd | ⊢ ( 𝑅 ∈ ℙ → 𝑅 ∈ ℂ ) |
| 18 | 17 | adantl | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 𝑅 ∈ ℂ ) |
| 19 | simp1 | ⊢ ( ( 2 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → 2 ∈ ℂ ) | |
| 20 | addcl | ⊢ ( ( 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → ( 𝑄 + 𝑅 ) ∈ ℂ ) | |
| 21 | 20 | 3adant1 | ⊢ ( ( 2 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → ( 𝑄 + 𝑅 ) ∈ ℂ ) |
| 22 | addass | ⊢ ( ( 2 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → ( ( 2 + 𝑄 ) + 𝑅 ) = ( 2 + ( 𝑄 + 𝑅 ) ) ) | |
| 23 | 19 21 22 | comraddd | ⊢ ( ( 2 ∈ ℂ ∧ 𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → ( ( 2 + 𝑄 ) + 𝑅 ) = ( ( 𝑄 + 𝑅 ) + 2 ) ) |
| 24 | 12 15 18 23 | syl3anc | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( ( 2 + 𝑄 ) + 𝑅 ) = ( ( 𝑄 + 𝑅 ) + 2 ) ) |
| 25 | 24 | eqeq2d | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 𝑄 + 𝑅 ) + 2 ) ) ) |
| 26 | 25 | adantr | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 𝑄 + 𝑅 ) + 2 ) ) ) |
| 27 | evenz | ⊢ ( 𝑁 ∈ Even → 𝑁 ∈ ℤ ) | |
| 28 | 27 | zcnd | ⊢ ( 𝑁 ∈ Even → 𝑁 ∈ ℂ ) |
| 29 | 28 | adantl | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 𝑁 ∈ ℂ ) |
| 30 | zaddcl | ⊢ ( ( 𝑄 ∈ ℤ ∧ 𝑅 ∈ ℤ ) → ( 𝑄 + 𝑅 ) ∈ ℤ ) | |
| 31 | 13 16 30 | syl2an | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑄 + 𝑅 ) ∈ ℤ ) |
| 32 | 31 | zcnd | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑄 + 𝑅 ) ∈ ℂ ) |
| 33 | 32 | adantr | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑄 + 𝑅 ) ∈ ℂ ) |
| 34 | 2cnd | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 2 ∈ ℂ ) | |
| 35 | 29 33 34 | addcan2d | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑄 + 𝑅 ) + 2 ) ↔ 𝑁 = ( 𝑄 + 𝑅 ) ) ) |
| 36 | 26 35 | bitrd | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) ↔ 𝑁 = ( 𝑄 + 𝑅 ) ) ) |
| 37 | simpll | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) → 𝑄 ∈ ℙ ) | |
| 38 | oveq1 | ⊢ ( 𝑝 = 𝑄 → ( 𝑝 + 𝑞 ) = ( 𝑄 + 𝑞 ) ) | |
| 39 | 38 | eqeq2d | ⊢ ( 𝑝 = 𝑄 → ( 𝑁 = ( 𝑝 + 𝑞 ) ↔ 𝑁 = ( 𝑄 + 𝑞 ) ) ) |
| 40 | 39 | rexbidv | ⊢ ( 𝑝 = 𝑄 → ( ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ↔ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑄 + 𝑞 ) ) ) |
| 41 | 40 | adantl | ⊢ ( ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) ∧ 𝑝 = 𝑄 ) → ( ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ↔ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑄 + 𝑞 ) ) ) |
| 42 | simplr | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) → 𝑅 ∈ ℙ ) | |
| 43 | simpr | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) → 𝑁 = ( 𝑄 + 𝑅 ) ) | |
| 44 | oveq2 | ⊢ ( 𝑞 = 𝑅 → ( 𝑄 + 𝑞 ) = ( 𝑄 + 𝑅 ) ) | |
| 45 | 44 | eqcomd | ⊢ ( 𝑞 = 𝑅 → ( 𝑄 + 𝑅 ) = ( 𝑄 + 𝑞 ) ) |
| 46 | 43 45 | sylan9eq | ⊢ ( ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) ∧ 𝑞 = 𝑅 ) → 𝑁 = ( 𝑄 + 𝑞 ) ) |
| 47 | 42 46 | rspcedeq2vd | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) → ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑄 + 𝑞 ) ) |
| 48 | 37 41 47 | rspcedvd | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑄 + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) |
| 49 | 48 | ex | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 = ( 𝑄 + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 50 | 49 | adantr | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑁 = ( 𝑄 + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 51 | 36 50 | sylbid | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 52 | 51 | com12 | ⊢ ( ( 𝑁 + 2 ) = ( ( 2 + 𝑄 ) + 𝑅 ) → ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 53 | 11 52 | biimtrdi | ⊢ ( 𝑃 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 54 | 53 | com13 | ⊢ ( ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑃 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 55 | 54 | ex | ⊢ ( ( 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑃 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 56 | 55 | 3adant1 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑃 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 57 | 56 | 3imp | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑃 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 58 | 57 | com12 | ⊢ ( 𝑃 = 2 → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 59 | oveq2 | ⊢ ( 𝑄 = 2 → ( 𝑃 + 𝑄 ) = ( 𝑃 + 2 ) ) | |
| 60 | 59 | oveq1d | ⊢ ( 𝑄 = 2 → ( ( 𝑃 + 𝑄 ) + 𝑅 ) = ( ( 𝑃 + 2 ) + 𝑅 ) ) |
| 61 | 60 | eqeq2d | ⊢ ( 𝑄 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 𝑃 + 2 ) + 𝑅 ) ) ) |
| 62 | prmz | ⊢ ( 𝑃 ∈ ℙ → 𝑃 ∈ ℤ ) | |
| 63 | 62 | zcnd | ⊢ ( 𝑃 ∈ ℙ → 𝑃 ∈ ℂ ) |
| 64 | 63 | adantr | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 𝑃 ∈ ℂ ) |
| 65 | 2cnd | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 2 ∈ ℂ ) | |
| 66 | 17 | adantl | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → 𝑅 ∈ ℂ ) |
| 67 | 64 65 66 | 3jca | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑃 ∈ ℂ ∧ 2 ∈ ℂ ∧ 𝑅 ∈ ℂ ) ) |
| 68 | 67 | adantr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑃 ∈ ℂ ∧ 2 ∈ ℂ ∧ 𝑅 ∈ ℂ ) ) |
| 69 | add32 | ⊢ ( ( 𝑃 ∈ ℂ ∧ 2 ∈ ℂ ∧ 𝑅 ∈ ℂ ) → ( ( 𝑃 + 2 ) + 𝑅 ) = ( ( 𝑃 + 𝑅 ) + 2 ) ) | |
| 70 | 68 69 | syl | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑃 + 2 ) + 𝑅 ) = ( ( 𝑃 + 𝑅 ) + 2 ) ) |
| 71 | 70 | eqeq2d | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 2 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑅 ) + 2 ) ) ) |
| 72 | 28 | adantl | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 𝑁 ∈ ℂ ) |
| 73 | zaddcl | ⊢ ( ( 𝑃 ∈ ℤ ∧ 𝑅 ∈ ℤ ) → ( 𝑃 + 𝑅 ) ∈ ℤ ) | |
| 74 | 62 16 73 | syl2an | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑃 + 𝑅 ) ∈ ℤ ) |
| 75 | 74 | zcnd | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑃 + 𝑅 ) ∈ ℂ ) |
| 76 | 75 | adantr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑃 + 𝑅 ) ∈ ℂ ) |
| 77 | 2cnd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 2 ∈ ℂ ) | |
| 78 | 72 76 77 | addcan2d | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑅 ) + 2 ) ↔ 𝑁 = ( 𝑃 + 𝑅 ) ) ) |
| 79 | 71 78 | bitrd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 2 ) + 𝑅 ) ↔ 𝑁 = ( 𝑃 + 𝑅 ) ) ) |
| 80 | simpll | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) → 𝑃 ∈ ℙ ) | |
| 81 | oveq1 | ⊢ ( 𝑝 = 𝑃 → ( 𝑝 + 𝑞 ) = ( 𝑃 + 𝑞 ) ) | |
| 82 | 81 | eqeq2d | ⊢ ( 𝑝 = 𝑃 → ( 𝑁 = ( 𝑝 + 𝑞 ) ↔ 𝑁 = ( 𝑃 + 𝑞 ) ) ) |
| 83 | 82 | rexbidv | ⊢ ( 𝑝 = 𝑃 → ( ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ↔ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑃 + 𝑞 ) ) ) |
| 84 | 83 | adantl | ⊢ ( ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) ∧ 𝑝 = 𝑃 ) → ( ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ↔ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑃 + 𝑞 ) ) ) |
| 85 | simplr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) → 𝑅 ∈ ℙ ) | |
| 86 | simpr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) → 𝑁 = ( 𝑃 + 𝑅 ) ) | |
| 87 | oveq2 | ⊢ ( 𝑞 = 𝑅 → ( 𝑃 + 𝑞 ) = ( 𝑃 + 𝑅 ) ) | |
| 88 | 87 | eqcomd | ⊢ ( 𝑞 = 𝑅 → ( 𝑃 + 𝑅 ) = ( 𝑃 + 𝑞 ) ) |
| 89 | 86 88 | sylan9eq | ⊢ ( ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) ∧ 𝑞 = 𝑅 ) → 𝑁 = ( 𝑃 + 𝑞 ) ) |
| 90 | 85 89 | rspcedeq2vd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) → ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑃 + 𝑞 ) ) |
| 91 | 80 84 90 | rspcedvd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) |
| 92 | 91 | ex | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 = ( 𝑃 + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 93 | 92 | adantr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑁 = ( 𝑃 + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 94 | 79 93 | sylbid | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 2 ) + 𝑅 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 95 | 94 | com12 | ⊢ ( ( 𝑁 + 2 ) = ( ( 𝑃 + 2 ) + 𝑅 ) → ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 96 | 61 95 | biimtrdi | ⊢ ( 𝑄 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 97 | 96 | com13 | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑄 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 98 | 97 | ex | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑄 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 99 | 98 | 3adant2 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑄 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 100 | 99 | 3imp | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑄 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 101 | 100 | com12 | ⊢ ( 𝑄 = 2 → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 102 | oveq2 | ⊢ ( 𝑅 = 2 → ( ( 𝑃 + 𝑄 ) + 𝑅 ) = ( ( 𝑃 + 𝑄 ) + 2 ) ) | |
| 103 | 102 | eqeq2d | ⊢ ( 𝑅 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ↔ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 2 ) ) ) |
| 104 | 28 | adantl | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 𝑁 ∈ ℂ ) |
| 105 | zaddcl | ⊢ ( ( 𝑃 ∈ ℤ ∧ 𝑄 ∈ ℤ ) → ( 𝑃 + 𝑄 ) ∈ ℤ ) | |
| 106 | 62 13 105 | syl2an | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) → ( 𝑃 + 𝑄 ) ∈ ℤ ) |
| 107 | 106 | zcnd | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) → ( 𝑃 + 𝑄 ) ∈ ℂ ) |
| 108 | 107 | adantr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑃 + 𝑄 ) ∈ ℂ ) |
| 109 | 2cnd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → 2 ∈ ℂ ) | |
| 110 | 104 108 109 | addcan2d | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 2 ) ↔ 𝑁 = ( 𝑃 + 𝑄 ) ) ) |
| 111 | simpll | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) → 𝑃 ∈ ℙ ) | |
| 112 | 83 | adantl | ⊢ ( ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) ∧ 𝑝 = 𝑃 ) → ( ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ↔ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑃 + 𝑞 ) ) ) |
| 113 | simplr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) → 𝑄 ∈ ℙ ) | |
| 114 | simpr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) → 𝑁 = ( 𝑃 + 𝑄 ) ) | |
| 115 | oveq2 | ⊢ ( 𝑞 = 𝑄 → ( 𝑃 + 𝑞 ) = ( 𝑃 + 𝑄 ) ) | |
| 116 | 115 | eqcomd | ⊢ ( 𝑞 = 𝑄 → ( 𝑃 + 𝑄 ) = ( 𝑃 + 𝑞 ) ) |
| 117 | 114 116 | sylan9eq | ⊢ ( ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) ∧ 𝑞 = 𝑄 ) → 𝑁 = ( 𝑃 + 𝑞 ) ) |
| 118 | 113 117 | rspcedeq2vd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) → ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑃 + 𝑞 ) ) |
| 119 | 111 112 118 | rspcedvd | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 = ( 𝑃 + 𝑄 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) |
| 120 | 119 | ex | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) → ( 𝑁 = ( 𝑃 + 𝑄 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 121 | 120 | adantr | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( 𝑁 = ( 𝑃 + 𝑄 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 122 | 110 121 | sylbid | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 2 ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 123 | 122 | com12 | ⊢ ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 2 ) → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 124 | 103 123 | biimtrdi | ⊢ ( 𝑅 = 2 → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 125 | 124 | com13 | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) ∧ 𝑁 ∈ Even ) → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑅 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) |
| 126 | 125 | ex | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑅 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 127 | 126 | 3adant3 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) → ( 𝑁 ∈ Even → ( ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) → ( 𝑅 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) ) ) |
| 128 | 127 | 3imp | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ( 𝑅 = 2 → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 129 | 128 | com12 | ⊢ ( 𝑅 = 2 → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 130 | 58 101 129 | 3jaoi | ⊢ ( ( 𝑃 = 2 ∨ 𝑄 = 2 ∨ 𝑅 = 2 ) → ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) ) |
| 131 | 8 130 | mpcom | ⊢ ( ( ( 𝑃 ∈ ℙ ∧ 𝑄 ∈ ℙ ∧ 𝑅 ∈ ℙ ) ∧ 𝑁 ∈ Even ∧ ( 𝑁 + 2 ) = ( ( 𝑃 + 𝑄 ) + 𝑅 ) ) → ∃ 𝑝 ∈ ℙ ∃ 𝑞 ∈ ℙ 𝑁 = ( 𝑝 + 𝑞 ) ) |