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Description: For a positive integer and a nonnegative integer both less than a given prime number there is always a second nonnegative integer (less than the given prime number) so that the sum of this second nonnegative integer multiplied with the positive integer and the first nonnegative integer is 0 ( modulo the given prime number). (Contributed by Alexander van der Vekens, 8-Nov-2018)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | nnnn0modprm0 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ∧ 𝐼 ∈ ( 0 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prmnn | ⊢ ( 𝑃 ∈ ℙ → 𝑃 ∈ ℕ ) | |
| 2 | 1 | adantr | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → 𝑃 ∈ ℕ ) |
| 3 | fzo0sn0fzo1 | ⊢ ( 𝑃 ∈ ℕ → ( 0 ..^ 𝑃 ) = ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) ) | |
| 4 | 2 3 | syl | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 0 ..^ 𝑃 ) = ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) ) |
| 5 | 4 | eleq2d | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 𝐼 ∈ ( 0 ..^ 𝑃 ) ↔ 𝐼 ∈ ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) ) ) |
| 6 | elun | ⊢ ( 𝐼 ∈ ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) ↔ ( 𝐼 ∈ { 0 } ∨ 𝐼 ∈ ( 1 ..^ 𝑃 ) ) ) | |
| 7 | elsni | ⊢ ( 𝐼 ∈ { 0 } → 𝐼 = 0 ) | |
| 8 | lbfzo0 | ⊢ ( 0 ∈ ( 0 ..^ 𝑃 ) ↔ 𝑃 ∈ ℕ ) | |
| 9 | 1 8 | sylibr | ⊢ ( 𝑃 ∈ ℙ → 0 ∈ ( 0 ..^ 𝑃 ) ) |
| 10 | elfzoelz | ⊢ ( 𝑁 ∈ ( 1 ..^ 𝑃 ) → 𝑁 ∈ ℤ ) | |
| 11 | zcn | ⊢ ( 𝑁 ∈ ℤ → 𝑁 ∈ ℂ ) | |
| 12 | mul02 | ⊢ ( 𝑁 ∈ ℂ → ( 0 · 𝑁 ) = 0 ) | |
| 13 | 12 | oveq2d | ⊢ ( 𝑁 ∈ ℂ → ( 0 + ( 0 · 𝑁 ) ) = ( 0 + 0 ) ) |
| 14 | 00id | ⊢ ( 0 + 0 ) = 0 | |
| 15 | 13 14 | eqtrdi | ⊢ ( 𝑁 ∈ ℂ → ( 0 + ( 0 · 𝑁 ) ) = 0 ) |
| 16 | 10 11 15 | 3syl | ⊢ ( 𝑁 ∈ ( 1 ..^ 𝑃 ) → ( 0 + ( 0 · 𝑁 ) ) = 0 ) |
| 17 | 16 | adantl | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 0 + ( 0 · 𝑁 ) ) = 0 ) |
| 18 | 17 | oveq1d | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( ( 0 + ( 0 · 𝑁 ) ) mod 𝑃 ) = ( 0 mod 𝑃 ) ) |
| 19 | nnrp | ⊢ ( 𝑃 ∈ ℕ → 𝑃 ∈ ℝ+ ) | |
| 20 | 0mod | ⊢ ( 𝑃 ∈ ℝ+ → ( 0 mod 𝑃 ) = 0 ) | |
| 21 | 1 19 20 | 3syl | ⊢ ( 𝑃 ∈ ℙ → ( 0 mod 𝑃 ) = 0 ) |
| 22 | 21 | adantr | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 0 mod 𝑃 ) = 0 ) |
| 23 | 18 22 | eqtrd | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( ( 0 + ( 0 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 24 | oveq1 | ⊢ ( 𝑗 = 0 → ( 𝑗 · 𝑁 ) = ( 0 · 𝑁 ) ) | |
| 25 | 24 | oveq2d | ⊢ ( 𝑗 = 0 → ( 0 + ( 𝑗 · 𝑁 ) ) = ( 0 + ( 0 · 𝑁 ) ) ) |
| 26 | 25 | oveq1d | ⊢ ( 𝑗 = 0 → ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = ( ( 0 + ( 0 · 𝑁 ) ) mod 𝑃 ) ) |
| 27 | 26 | eqeq1d | ⊢ ( 𝑗 = 0 → ( ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ↔ ( ( 0 + ( 0 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 28 | 27 | rspcev | ⊢ ( ( 0 ∈ ( 0 ..^ 𝑃 ) ∧ ( ( 0 + ( 0 · 𝑁 ) ) mod 𝑃 ) = 0 ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 29 | 9 23 28 | syl2an2r | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 30 | 29 | adantl | ⊢ ( ( 𝐼 = 0 ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 31 | oveq1 | ⊢ ( 𝐼 = 0 → ( 𝐼 + ( 𝑗 · 𝑁 ) ) = ( 0 + ( 𝑗 · 𝑁 ) ) ) | |
| 32 | 31 | oveq1d | ⊢ ( 𝐼 = 0 → ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) ) |
| 33 | 32 | eqeq1d | ⊢ ( 𝐼 = 0 → ( ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ↔ ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 34 | 33 | adantr | ⊢ ( ( 𝐼 = 0 ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → ( ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ↔ ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 35 | 34 | rexbidv | ⊢ ( ( 𝐼 = 0 ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → ( ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ↔ ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 0 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 36 | 30 35 | mpbird | ⊢ ( ( 𝐼 = 0 ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 37 | 36 | ex | ⊢ ( 𝐼 = 0 → ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 38 | 7 37 | syl | ⊢ ( 𝐼 ∈ { 0 } → ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 39 | simpl | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → 𝑃 ∈ ℙ ) | |
| 40 | 39 | adantl | ⊢ ( ( 𝐼 ∈ ( 1 ..^ 𝑃 ) ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → 𝑃 ∈ ℙ ) |
| 41 | simprr | ⊢ ( ( 𝐼 ∈ ( 1 ..^ 𝑃 ) ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → 𝑁 ∈ ( 1 ..^ 𝑃 ) ) | |
| 42 | simpl | ⊢ ( ( 𝐼 ∈ ( 1 ..^ 𝑃 ) ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → 𝐼 ∈ ( 1 ..^ 𝑃 ) ) | |
| 43 | modprm0 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ∧ 𝐼 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) | |
| 44 | 40 41 42 43 | syl3anc | ⊢ ( ( 𝐼 ∈ ( 1 ..^ 𝑃 ) ∧ ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |
| 45 | 44 | ex | ⊢ ( 𝐼 ∈ ( 1 ..^ 𝑃 ) → ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 46 | 38 45 | jaoi | ⊢ ( ( 𝐼 ∈ { 0 } ∨ 𝐼 ∈ ( 1 ..^ 𝑃 ) ) → ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 47 | 6 46 | sylbi | ⊢ ( 𝐼 ∈ ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) → ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 48 | 47 | com12 | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 𝐼 ∈ ( { 0 } ∪ ( 1 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 49 | 5 48 | sylbid | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ) → ( 𝐼 ∈ ( 0 ..^ 𝑃 ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) ) |
| 50 | 49 | 3impia | ⊢ ( ( 𝑃 ∈ ℙ ∧ 𝑁 ∈ ( 1 ..^ 𝑃 ) ∧ 𝐼 ∈ ( 0 ..^ 𝑃 ) ) → ∃ 𝑗 ∈ ( 0 ..^ 𝑃 ) ( ( 𝐼 + ( 𝑗 · 𝑁 ) ) mod 𝑃 ) = 0 ) |