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Description: Lemma for bpos . Bound the product of all small primes in the binomial coefficient. (Contributed by Mario Carneiro, 15-Mar-2014) (Proof shortened by AV, 15-Sep-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | bpos.1 | |- ( ph -> N e. ( ZZ>= ` 5 ) ) |
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| bpos.2 | |- ( ph -> -. E. p e. Prime ( N < p /\ p <_ ( 2 x. N ) ) ) |
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| bpos.3 | |- F = ( n e. NN |-> if ( n e. Prime , ( n ^ ( n pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) ) |
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| bpos.4 | |- K = ( |_ ` ( ( 2 x. N ) / 3 ) ) |
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| bpos.5 | |- M = ( |_ ` ( sqrt ` ( 2 x. N ) ) ) |
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| Assertion | bposlem5 | |- ( ph -> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bpos.1 | |- ( ph -> N e. ( ZZ>= ` 5 ) ) |
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| 2 | bpos.2 | |- ( ph -> -. E. p e. Prime ( N < p /\ p <_ ( 2 x. N ) ) ) |
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| 3 | bpos.3 | |- F = ( n e. NN |-> if ( n e. Prime , ( n ^ ( n pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) ) |
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| 4 | bpos.4 | |- K = ( |_ ` ( ( 2 x. N ) / 3 ) ) |
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| 5 | bpos.5 | |- M = ( |_ ` ( sqrt ` ( 2 x. N ) ) ) |
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| 6 | id | |- ( n e. Prime -> n e. Prime ) |
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| 7 | 5nn | |- 5 e. NN |
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| 8 | eluznn | |- ( ( 5 e. NN /\ N e. ( ZZ>= ` 5 ) ) -> N e. NN ) |
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| 9 | 7 1 8 | sylancr | |- ( ph -> N e. NN ) |
| 10 | 9 | nnnn0d | |- ( ph -> N e. NN0 ) |
| 11 | fzctr | |- ( N e. NN0 -> N e. ( 0 ... ( 2 x. N ) ) ) |
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| 12 | bccl2 | |- ( N e. ( 0 ... ( 2 x. N ) ) -> ( ( 2 x. N ) _C N ) e. NN ) |
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| 13 | 10 11 12 | 3syl | |- ( ph -> ( ( 2 x. N ) _C N ) e. NN ) |
| 14 | pccl | |- ( ( n e. Prime /\ ( ( 2 x. N ) _C N ) e. NN ) -> ( n pCnt ( ( 2 x. N ) _C N ) ) e. NN0 ) |
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| 15 | 6 13 14 | syl2anr | |- ( ( ph /\ n e. Prime ) -> ( n pCnt ( ( 2 x. N ) _C N ) ) e. NN0 ) |
| 16 | 15 | ralrimiva | |- ( ph -> A. n e. Prime ( n pCnt ( ( 2 x. N ) _C N ) ) e. NN0 ) |
| 17 | 3 16 | pcmptcl | |- ( ph -> ( F : NN --> NN /\ seq 1 ( x. , F ) : NN --> NN ) ) |
| 18 | 17 | simprd | |- ( ph -> seq 1 ( x. , F ) : NN --> NN ) |
| 19 | 3nn | |- 3 e. NN |
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| 20 | 2z | |- 2 e. ZZ |
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| 21 | 9 | nnzd | |- ( ph -> N e. ZZ ) |
| 22 | zmulcl | |- ( ( 2 e. ZZ /\ N e. ZZ ) -> ( 2 x. N ) e. ZZ ) |
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| 23 | 20 21 22 | sylancr | |- ( ph -> ( 2 x. N ) e. ZZ ) |
| 24 | 23 | zred | |- ( ph -> ( 2 x. N ) e. RR ) |
| 25 | 2nn | |- 2 e. NN |
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| 26 | nnmulcl | |- ( ( 2 e. NN /\ N e. NN ) -> ( 2 x. N ) e. NN ) |
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| 27 | 25 9 26 | sylancr | |- ( ph -> ( 2 x. N ) e. NN ) |
| 28 | 27 | nnrpd | |- ( ph -> ( 2 x. N ) e. RR+ ) |
| 29 | 28 | rpge0d | |- ( ph -> 0 <_ ( 2 x. N ) ) |
| 30 | 24 29 | resqrtcld | |- ( ph -> ( sqrt ` ( 2 x. N ) ) e. RR ) |
| 31 | 30 | flcld | |- ( ph -> ( |_ ` ( sqrt ` ( 2 x. N ) ) ) e. ZZ ) |
| 32 | sqrt9 | |- ( sqrt ` 9 ) = 3 |
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| 33 | 9re | |- 9 e. RR |
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| 34 | 33 | a1i | |- ( ph -> 9 e. RR ) |
| 35 | 10re | |- ; 1 0 e. RR |
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| 36 | 35 | a1i | |- ( ph -> ; 1 0 e. RR ) |
| 37 | lep1 | |- ( 9 e. RR -> 9 <_ ( 9 + 1 ) ) |
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| 38 | 33 37 | ax-mp | |- 9 <_ ( 9 + 1 ) |
| 39 | 9p1e10 | |- ( 9 + 1 ) = ; 1 0 |
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| 40 | 38 39 | breqtri | |- 9 <_ ; 1 0 |
| 41 | 40 | a1i | |- ( ph -> 9 <_ ; 1 0 ) |
| 42 | 5cn | |- 5 e. CC |
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| 43 | 2cn | |- 2 e. CC |
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| 44 | 5t2e10 | |- ( 5 x. 2 ) = ; 1 0 |
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| 45 | 42 43 44 | mulcomli | |- ( 2 x. 5 ) = ; 1 0 |
| 46 | eluzle | |- ( N e. ( ZZ>= ` 5 ) -> 5 <_ N ) |
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| 47 | 1 46 | syl | |- ( ph -> 5 <_ N ) |
| 48 | 9 | nnred | |- ( ph -> N e. RR ) |
| 49 | 5re | |- 5 e. RR |
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| 50 | 2re | |- 2 e. RR |
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| 51 | 2pos | |- 0 < 2 |
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| 52 | 50 51 | pm3.2i | |- ( 2 e. RR /\ 0 < 2 ) |
| 53 | lemul2 | |- ( ( 5 e. RR /\ N e. RR /\ ( 2 e. RR /\ 0 < 2 ) ) -> ( 5 <_ N <-> ( 2 x. 5 ) <_ ( 2 x. N ) ) ) |
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| 54 | 49 52 53 | mp3an13 | |- ( N e. RR -> ( 5 <_ N <-> ( 2 x. 5 ) <_ ( 2 x. N ) ) ) |
| 55 | 48 54 | syl | |- ( ph -> ( 5 <_ N <-> ( 2 x. 5 ) <_ ( 2 x. N ) ) ) |
| 56 | 47 55 | mpbid | |- ( ph -> ( 2 x. 5 ) <_ ( 2 x. N ) ) |
| 57 | 45 56 | eqbrtrrid | |- ( ph -> ; 1 0 <_ ( 2 x. N ) ) |
| 58 | 34 36 24 41 57 | letrd | |- ( ph -> 9 <_ ( 2 x. N ) ) |
| 59 | 0re | |- 0 e. RR |
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| 60 | 9pos | |- 0 < 9 |
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| 61 | 59 33 60 | ltleii | |- 0 <_ 9 |
| 62 | 33 61 | pm3.2i | |- ( 9 e. RR /\ 0 <_ 9 ) |
| 63 | 24 29 | jca | |- ( ph -> ( ( 2 x. N ) e. RR /\ 0 <_ ( 2 x. N ) ) ) |
| 64 | sqrtle | |- ( ( ( 9 e. RR /\ 0 <_ 9 ) /\ ( ( 2 x. N ) e. RR /\ 0 <_ ( 2 x. N ) ) ) -> ( 9 <_ ( 2 x. N ) <-> ( sqrt ` 9 ) <_ ( sqrt ` ( 2 x. N ) ) ) ) |
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| 65 | 62 63 64 | sylancr | |- ( ph -> ( 9 <_ ( 2 x. N ) <-> ( sqrt ` 9 ) <_ ( sqrt ` ( 2 x. N ) ) ) ) |
| 66 | 58 65 | mpbid | |- ( ph -> ( sqrt ` 9 ) <_ ( sqrt ` ( 2 x. N ) ) ) |
| 67 | 32 66 | eqbrtrrid | |- ( ph -> 3 <_ ( sqrt ` ( 2 x. N ) ) ) |
| 68 | 3z | |- 3 e. ZZ |
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| 69 | flge | |- ( ( ( sqrt ` ( 2 x. N ) ) e. RR /\ 3 e. ZZ ) -> ( 3 <_ ( sqrt ` ( 2 x. N ) ) <-> 3 <_ ( |_ ` ( sqrt ` ( 2 x. N ) ) ) ) ) |
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| 70 | 30 68 69 | sylancl | |- ( ph -> ( 3 <_ ( sqrt ` ( 2 x. N ) ) <-> 3 <_ ( |_ ` ( sqrt ` ( 2 x. N ) ) ) ) ) |
| 71 | 67 70 | mpbid | |- ( ph -> 3 <_ ( |_ ` ( sqrt ` ( 2 x. N ) ) ) ) |
| 72 | 68 | eluz1i | |- ( ( |_ ` ( sqrt ` ( 2 x. N ) ) ) e. ( ZZ>= ` 3 ) <-> ( ( |_ ` ( sqrt ` ( 2 x. N ) ) ) e. ZZ /\ 3 <_ ( |_ ` ( sqrt ` ( 2 x. N ) ) ) ) ) |
| 73 | 31 71 72 | sylanbrc | |- ( ph -> ( |_ ` ( sqrt ` ( 2 x. N ) ) ) e. ( ZZ>= ` 3 ) ) |
| 74 | 5 73 | eqeltrid | |- ( ph -> M e. ( ZZ>= ` 3 ) ) |
| 75 | eluznn | |- ( ( 3 e. NN /\ M e. ( ZZ>= ` 3 ) ) -> M e. NN ) |
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| 76 | 19 74 75 | sylancr | |- ( ph -> M e. NN ) |
| 77 | 18 76 | ffvelcdmd | |- ( ph -> ( seq 1 ( x. , F ) ` M ) e. NN ) |
| 78 | 77 | nnred | |- ( ph -> ( seq 1 ( x. , F ) ` M ) e. RR ) |
| 79 | 76 | nnred | |- ( ph -> M e. RR ) |
| 80 | ppicl | |- ( M e. RR -> ( ppi ` M ) e. NN0 ) |
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| 81 | 79 80 | syl | |- ( ph -> ( ppi ` M ) e. NN0 ) |
| 82 | 27 81 | nnexpcld | |- ( ph -> ( ( 2 x. N ) ^ ( ppi ` M ) ) e. NN ) |
| 83 | 82 | nnred | |- ( ph -> ( ( 2 x. N ) ^ ( ppi ` M ) ) e. RR ) |
| 84 | nndivre | |- ( ( ( sqrt ` ( 2 x. N ) ) e. RR /\ 3 e. NN ) -> ( ( sqrt ` ( 2 x. N ) ) / 3 ) e. RR ) |
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| 85 | 30 19 84 | sylancl | |- ( ph -> ( ( sqrt ` ( 2 x. N ) ) / 3 ) e. RR ) |
| 86 | readdcl | |- ( ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) e. RR /\ 2 e. RR ) -> ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) e. RR ) |
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| 87 | 85 50 86 | sylancl | |- ( ph -> ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) e. RR ) |
| 88 | 24 29 87 | recxpcld | |- ( ph -> ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) e. RR ) |
| 89 | fveq2 | |- ( x = 1 -> ( seq 1 ( x. , F ) ` x ) = ( seq 1 ( x. , F ) ` 1 ) ) |
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| 90 | fveq2 | |- ( x = 1 -> ( ppi ` x ) = ( ppi ` 1 ) ) |
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| 91 | ppi1 | |- ( ppi ` 1 ) = 0 |
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| 92 | 90 91 | eqtrdi | |- ( x = 1 -> ( ppi ` x ) = 0 ) |
| 93 | 92 | oveq2d | |- ( x = 1 -> ( ( 2 x. N ) ^ ( ppi ` x ) ) = ( ( 2 x. N ) ^ 0 ) ) |
| 94 | 89 93 | breq12d | |- ( x = 1 -> ( ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) <-> ( seq 1 ( x. , F ) ` 1 ) <_ ( ( 2 x. N ) ^ 0 ) ) ) |
| 95 | 94 | imbi2d | |- ( x = 1 -> ( ( ph -> ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) ) <-> ( ph -> ( seq 1 ( x. , F ) ` 1 ) <_ ( ( 2 x. N ) ^ 0 ) ) ) ) |
| 96 | fveq2 | |- ( x = k -> ( seq 1 ( x. , F ) ` x ) = ( seq 1 ( x. , F ) ` k ) ) |
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| 97 | fveq2 | |- ( x = k -> ( ppi ` x ) = ( ppi ` k ) ) |
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| 98 | 97 | oveq2d | |- ( x = k -> ( ( 2 x. N ) ^ ( ppi ` x ) ) = ( ( 2 x. N ) ^ ( ppi ` k ) ) ) |
| 99 | 96 98 | breq12d | |- ( x = k -> ( ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) <-> ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) ) ) |
| 100 | 99 | imbi2d | |- ( x = k -> ( ( ph -> ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) ) <-> ( ph -> ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) ) ) ) |
| 101 | fveq2 | |- ( x = ( k + 1 ) -> ( seq 1 ( x. , F ) ` x ) = ( seq 1 ( x. , F ) ` ( k + 1 ) ) ) |
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| 102 | fveq2 | |- ( x = ( k + 1 ) -> ( ppi ` x ) = ( ppi ` ( k + 1 ) ) ) |
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| 103 | 102 | oveq2d | |- ( x = ( k + 1 ) -> ( ( 2 x. N ) ^ ( ppi ` x ) ) = ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) |
| 104 | 101 103 | breq12d | |- ( x = ( k + 1 ) -> ( ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) <-> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 105 | 104 | imbi2d | |- ( x = ( k + 1 ) -> ( ( ph -> ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) ) <-> ( ph -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) ) |
| 106 | fveq2 | |- ( x = M -> ( seq 1 ( x. , F ) ` x ) = ( seq 1 ( x. , F ) ` M ) ) |
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| 107 | fveq2 | |- ( x = M -> ( ppi ` x ) = ( ppi ` M ) ) |
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| 108 | 107 | oveq2d | |- ( x = M -> ( ( 2 x. N ) ^ ( ppi ` x ) ) = ( ( 2 x. N ) ^ ( ppi ` M ) ) ) |
| 109 | 106 108 | breq12d | |- ( x = M -> ( ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) <-> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^ ( ppi ` M ) ) ) ) |
| 110 | 109 | imbi2d | |- ( x = M -> ( ( ph -> ( seq 1 ( x. , F ) ` x ) <_ ( ( 2 x. N ) ^ ( ppi ` x ) ) ) <-> ( ph -> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^ ( ppi ` M ) ) ) ) ) |
| 111 | 1z | |- 1 e. ZZ |
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| 112 | seq1 | |- ( 1 e. ZZ -> ( seq 1 ( x. , F ) ` 1 ) = ( F ` 1 ) ) |
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| 113 | 111 112 | ax-mp | |- ( seq 1 ( x. , F ) ` 1 ) = ( F ` 1 ) |
| 114 | 1nn | |- 1 e. NN |
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| 115 | 1nprm | |- -. 1 e. Prime |
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| 116 | eleq1 | |- ( n = 1 -> ( n e. Prime <-> 1 e. Prime ) ) |
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| 117 | 115 116 | mtbiri | |- ( n = 1 -> -. n e. Prime ) |
| 118 | 117 | iffalsed | |- ( n = 1 -> if ( n e. Prime , ( n ^ ( n pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) = 1 ) |
| 119 | 1ex | |- 1 e. _V |
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| 120 | 118 3 119 | fvmpt | |- ( 1 e. NN -> ( F ` 1 ) = 1 ) |
| 121 | 114 120 | ax-mp | |- ( F ` 1 ) = 1 |
| 122 | 113 121 | eqtri | |- ( seq 1 ( x. , F ) ` 1 ) = 1 |
| 123 | 1le1 | |- 1 <_ 1 |
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| 124 | 122 123 | eqbrtri | |- ( seq 1 ( x. , F ) ` 1 ) <_ 1 |
| 125 | 23 | zcnd | |- ( ph -> ( 2 x. N ) e. CC ) |
| 126 | 125 | exp0d | |- ( ph -> ( ( 2 x. N ) ^ 0 ) = 1 ) |
| 127 | 124 126 | breqtrrid | |- ( ph -> ( seq 1 ( x. , F ) ` 1 ) <_ ( ( 2 x. N ) ^ 0 ) ) |
| 128 | 18 | ffvelcdmda | |- ( ( ph /\ k e. NN ) -> ( seq 1 ( x. , F ) ` k ) e. NN ) |
| 129 | 128 | nnred | |- ( ( ph /\ k e. NN ) -> ( seq 1 ( x. , F ) ` k ) e. RR ) |
| 130 | 129 | adantr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` k ) e. RR ) |
| 131 | 27 | ad2antrr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( 2 x. N ) e. NN ) |
| 132 | nnre | |- ( k e. NN -> k e. RR ) |
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| 133 | 132 | ad2antlr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> k e. RR ) |
| 134 | ppicl | |- ( k e. RR -> ( ppi ` k ) e. NN0 ) |
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| 135 | 133 134 | syl | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ppi ` k ) e. NN0 ) |
| 136 | 131 135 | nnexpcld | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ppi ` k ) ) e. NN ) |
| 137 | 136 | nnred | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ppi ` k ) ) e. RR ) |
| 138 | nnre | |- ( ( 2 x. N ) e. NN -> ( 2 x. N ) e. RR ) |
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| 139 | nngt0 | |- ( ( 2 x. N ) e. NN -> 0 < ( 2 x. N ) ) |
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| 140 | 138 139 | jca | |- ( ( 2 x. N ) e. NN -> ( ( 2 x. N ) e. RR /\ 0 < ( 2 x. N ) ) ) |
| 141 | 27 140 | syl | |- ( ph -> ( ( 2 x. N ) e. RR /\ 0 < ( 2 x. N ) ) ) |
| 142 | 141 | ad2antrr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) e. RR /\ 0 < ( 2 x. N ) ) ) |
| 143 | lemul1 | |- ( ( ( seq 1 ( x. , F ) ` k ) e. RR /\ ( ( 2 x. N ) ^ ( ppi ` k ) ) e. RR /\ ( ( 2 x. N ) e. RR /\ 0 < ( 2 x. N ) ) ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( ( 2 x. N ) ^ ( ppi ` k ) ) x. ( 2 x. N ) ) ) ) |
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| 144 | 130 137 142 143 | syl3anc | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( ( 2 x. N ) ^ ( ppi ` k ) ) x. ( 2 x. N ) ) ) ) |
| 145 | nnz | |- ( k e. NN -> k e. ZZ ) |
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| 146 | 145 | adantl | |- ( ( ph /\ k e. NN ) -> k e. ZZ ) |
| 147 | ppiprm | |- ( ( k e. ZZ /\ ( k + 1 ) e. Prime ) -> ( ppi ` ( k + 1 ) ) = ( ( ppi ` k ) + 1 ) ) |
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| 148 | 146 147 | sylan | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ppi ` ( k + 1 ) ) = ( ( ppi ` k ) + 1 ) ) |
| 149 | 148 | oveq2d | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) = ( ( 2 x. N ) ^ ( ( ppi ` k ) + 1 ) ) ) |
| 150 | 125 | ad2antrr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( 2 x. N ) e. CC ) |
| 151 | 150 135 | expp1d | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ( ppi ` k ) + 1 ) ) = ( ( ( 2 x. N ) ^ ( ppi ` k ) ) x. ( 2 x. N ) ) ) |
| 152 | 149 151 | eqtrd | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) = ( ( ( 2 x. N ) ^ ( ppi ` k ) ) x. ( 2 x. N ) ) ) |
| 153 | 152 | breq2d | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( ( 2 x. N ) ^ ( ppi ` k ) ) x. ( 2 x. N ) ) ) ) |
| 154 | 144 153 | bitr4d | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 155 | simpr | |- ( ( ph /\ k e. NN ) -> k e. NN ) |
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| 156 | nnuz | |- NN = ( ZZ>= ` 1 ) |
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| 157 | 155 156 | eleqtrdi | |- ( ( ph /\ k e. NN ) -> k e. ( ZZ>= ` 1 ) ) |
| 158 | seqp1 | |- ( k e. ( ZZ>= ` 1 ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) = ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) ) |
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| 159 | 157 158 | syl | |- ( ( ph /\ k e. NN ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) = ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) ) |
| 160 | 159 | adantr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) = ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) ) |
| 161 | peano2nn | |- ( k e. NN -> ( k + 1 ) e. NN ) |
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| 162 | 161 | adantl | |- ( ( ph /\ k e. NN ) -> ( k + 1 ) e. NN ) |
| 163 | eleq1 | |- ( n = ( k + 1 ) -> ( n e. Prime <-> ( k + 1 ) e. Prime ) ) |
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| 164 | id | |- ( n = ( k + 1 ) -> n = ( k + 1 ) ) |
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| 165 | oveq1 | |- ( n = ( k + 1 ) -> ( n pCnt ( ( 2 x. N ) _C N ) ) = ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) |
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| 166 | 164 165 | oveq12d | |- ( n = ( k + 1 ) -> ( n ^ ( n pCnt ( ( 2 x. N ) _C N ) ) ) = ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) ) |
| 167 | 163 166 | ifbieq1d | |- ( n = ( k + 1 ) -> if ( n e. Prime , ( n ^ ( n pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) = if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) ) |
| 168 | ovex | |- ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) e. _V |
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| 169 | 168 119 | ifex | |- if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) e. _V |
| 170 | 167 3 169 | fvmpt | |- ( ( k + 1 ) e. NN -> ( F ` ( k + 1 ) ) = if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) ) |
| 171 | 162 170 | syl | |- ( ( ph /\ k e. NN ) -> ( F ` ( k + 1 ) ) = if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) ) |
| 172 | iftrue | |- ( ( k + 1 ) e. Prime -> if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) = ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) ) |
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| 173 | 171 172 | sylan9eq | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( F ` ( k + 1 ) ) = ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) ) |
| 174 | 9 | adantr | |- ( ( ph /\ k e. NN ) -> N e. NN ) |
| 175 | bposlem1 | |- ( ( N e. NN /\ ( k + 1 ) e. Prime ) -> ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) <_ ( 2 x. N ) ) |
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| 176 | 174 175 | sylan | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) <_ ( 2 x. N ) ) |
| 177 | 173 176 | eqbrtrd | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( F ` ( k + 1 ) ) <_ ( 2 x. N ) ) |
| 178 | 17 | simpld | |- ( ph -> F : NN --> NN ) |
| 179 | ffvelcdm | |- ( ( F : NN --> NN /\ ( k + 1 ) e. NN ) -> ( F ` ( k + 1 ) ) e. NN ) |
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| 180 | 178 161 179 | syl2an | |- ( ( ph /\ k e. NN ) -> ( F ` ( k + 1 ) ) e. NN ) |
| 181 | 180 | nnred | |- ( ( ph /\ k e. NN ) -> ( F ` ( k + 1 ) ) e. RR ) |
| 182 | 181 | adantr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( F ` ( k + 1 ) ) e. RR ) |
| 183 | 24 | ad2antrr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( 2 x. N ) e. RR ) |
| 184 | nnre | |- ( ( seq 1 ( x. , F ) ` k ) e. NN -> ( seq 1 ( x. , F ) ` k ) e. RR ) |
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| 185 | nngt0 | |- ( ( seq 1 ( x. , F ) ` k ) e. NN -> 0 < ( seq 1 ( x. , F ) ` k ) ) |
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| 186 | 184 185 | jca | |- ( ( seq 1 ( x. , F ) ` k ) e. NN -> ( ( seq 1 ( x. , F ) ` k ) e. RR /\ 0 < ( seq 1 ( x. , F ) ` k ) ) ) |
| 187 | 128 186 | syl | |- ( ( ph /\ k e. NN ) -> ( ( seq 1 ( x. , F ) ` k ) e. RR /\ 0 < ( seq 1 ( x. , F ) ` k ) ) ) |
| 188 | 187 | adantr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) e. RR /\ 0 < ( seq 1 ( x. , F ) ` k ) ) ) |
| 189 | lemul2 | |- ( ( ( F ` ( k + 1 ) ) e. RR /\ ( 2 x. N ) e. RR /\ ( ( seq 1 ( x. , F ) ` k ) e. RR /\ 0 < ( seq 1 ( x. , F ) ` k ) ) ) -> ( ( F ` ( k + 1 ) ) <_ ( 2 x. N ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) ) ) |
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| 190 | 182 183 188 189 | syl3anc | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( F ` ( k + 1 ) ) <_ ( 2 x. N ) <-> ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) ) ) |
| 191 | 177 190 | mpbid | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) ) |
| 192 | 160 191 | eqbrtrd | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) ) |
| 193 | ffvelcdm | |- ( ( seq 1 ( x. , F ) : NN --> NN /\ ( k + 1 ) e. NN ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) e. NN ) |
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| 194 | 18 161 193 | syl2an | |- ( ( ph /\ k e. NN ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) e. NN ) |
| 195 | 194 | nnred | |- ( ( ph /\ k e. NN ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) e. RR ) |
| 196 | 27 | adantr | |- ( ( ph /\ k e. NN ) -> ( 2 x. N ) e. NN ) |
| 197 | 128 196 | nnmulcld | |- ( ( ph /\ k e. NN ) -> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) e. NN ) |
| 198 | 197 | nnred | |- ( ( ph /\ k e. NN ) -> ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) e. RR ) |
| 199 | 162 | nnred | |- ( ( ph /\ k e. NN ) -> ( k + 1 ) e. RR ) |
| 200 | ppicl | |- ( ( k + 1 ) e. RR -> ( ppi ` ( k + 1 ) ) e. NN0 ) |
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| 201 | 199 200 | syl | |- ( ( ph /\ k e. NN ) -> ( ppi ` ( k + 1 ) ) e. NN0 ) |
| 202 | 196 201 | nnexpcld | |- ( ( ph /\ k e. NN ) -> ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) e. NN ) |
| 203 | 202 | nnred | |- ( ( ph /\ k e. NN ) -> ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) e. RR ) |
| 204 | letr | |- ( ( ( seq 1 ( x. , F ) ` ( k + 1 ) ) e. RR /\ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) e. RR /\ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) e. RR ) -> ( ( ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) /\ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
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| 205 | 195 198 203 204 | syl3anc | |- ( ( ph /\ k e. NN ) -> ( ( ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) /\ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 206 | 205 | adantr | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) /\ ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 207 | 192 206 | mpand | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( ( seq 1 ( x. , F ) ` k ) x. ( 2 x. N ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 208 | 154 207 | sylbid | |- ( ( ( ph /\ k e. NN ) /\ ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 209 | 159 | adantr | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) = ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) ) |
| 210 | iffalse | |- ( -. ( k + 1 ) e. Prime -> if ( ( k + 1 ) e. Prime , ( ( k + 1 ) ^ ( ( k + 1 ) pCnt ( ( 2 x. N ) _C N ) ) ) , 1 ) = 1 ) |
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| 211 | 171 210 | sylan9eq | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( F ` ( k + 1 ) ) = 1 ) |
| 212 | 211 | oveq2d | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) x. ( F ` ( k + 1 ) ) ) = ( ( seq 1 ( x. , F ) ` k ) x. 1 ) ) |
| 213 | 128 | adantr | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` k ) e. NN ) |
| 214 | 213 | nncnd | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` k ) e. CC ) |
| 215 | 214 | mulridd | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) x. 1 ) = ( seq 1 ( x. , F ) ` k ) ) |
| 216 | 209 212 215 | 3eqtrd | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) = ( seq 1 ( x. , F ) ` k ) ) |
| 217 | ppinprm | |- ( ( k e. ZZ /\ -. ( k + 1 ) e. Prime ) -> ( ppi ` ( k + 1 ) ) = ( ppi ` k ) ) |
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| 218 | 146 217 | sylan | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ppi ` ( k + 1 ) ) = ( ppi ` k ) ) |
| 219 | 218 | oveq2d | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) = ( ( 2 x. N ) ^ ( ppi ` k ) ) ) |
| 220 | 216 219 | breq12d | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) <-> ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) ) ) |
| 221 | 220 | biimprd | |- ( ( ( ph /\ k e. NN ) /\ -. ( k + 1 ) e. Prime ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 222 | 208 221 | pm2.61dan | |- ( ( ph /\ k e. NN ) -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) |
| 223 | 222 | expcom | |- ( k e. NN -> ( ph -> ( ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) ) |
| 224 | 223 | a2d | |- ( k e. NN -> ( ( ph -> ( seq 1 ( x. , F ) ` k ) <_ ( ( 2 x. N ) ^ ( ppi ` k ) ) ) -> ( ph -> ( seq 1 ( x. , F ) ` ( k + 1 ) ) <_ ( ( 2 x. N ) ^ ( ppi ` ( k + 1 ) ) ) ) ) ) |
| 225 | 95 100 105 110 127 224 | nnind | |- ( M e. NN -> ( ph -> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^ ( ppi ` M ) ) ) ) |
| 226 | 76 225 | mpcom | |- ( ph -> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^ ( ppi ` M ) ) ) |
| 227 | cxpexp | |- ( ( ( 2 x. N ) e. CC /\ ( ppi ` M ) e. NN0 ) -> ( ( 2 x. N ) ^c ( ppi ` M ) ) = ( ( 2 x. N ) ^ ( ppi ` M ) ) ) |
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| 228 | 125 81 227 | syl2anc | |- ( ph -> ( ( 2 x. N ) ^c ( ppi ` M ) ) = ( ( 2 x. N ) ^ ( ppi ` M ) ) ) |
| 229 | 81 | nn0red | |- ( ph -> ( ppi ` M ) e. RR ) |
| 230 | nndivre | |- ( ( M e. RR /\ 3 e. NN ) -> ( M / 3 ) e. RR ) |
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| 231 | 79 19 230 | sylancl | |- ( ph -> ( M / 3 ) e. RR ) |
| 232 | readdcl | |- ( ( ( M / 3 ) e. RR /\ 2 e. RR ) -> ( ( M / 3 ) + 2 ) e. RR ) |
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| 233 | 231 50 232 | sylancl | |- ( ph -> ( ( M / 3 ) + 2 ) e. RR ) |
| 234 | 76 | nnnn0d | |- ( ph -> M e. NN0 ) |
| 235 | 234 | nn0ge0d | |- ( ph -> 0 <_ M ) |
| 236 | ppiub | |- ( ( M e. RR /\ 0 <_ M ) -> ( ppi ` M ) <_ ( ( M / 3 ) + 2 ) ) |
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| 237 | 79 235 236 | syl2anc | |- ( ph -> ( ppi ` M ) <_ ( ( M / 3 ) + 2 ) ) |
| 238 | 50 | a1i | |- ( ph -> 2 e. RR ) |
| 239 | flle | |- ( ( sqrt ` ( 2 x. N ) ) e. RR -> ( |_ ` ( sqrt ` ( 2 x. N ) ) ) <_ ( sqrt ` ( 2 x. N ) ) ) |
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| 240 | 30 239 | syl | |- ( ph -> ( |_ ` ( sqrt ` ( 2 x. N ) ) ) <_ ( sqrt ` ( 2 x. N ) ) ) |
| 241 | 5 240 | eqbrtrid | |- ( ph -> M <_ ( sqrt ` ( 2 x. N ) ) ) |
| 242 | 3re | |- 3 e. RR |
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| 243 | 3pos | |- 0 < 3 |
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| 244 | 242 243 | pm3.2i | |- ( 3 e. RR /\ 0 < 3 ) |
| 245 | 244 | a1i | |- ( ph -> ( 3 e. RR /\ 0 < 3 ) ) |
| 246 | lediv1 | |- ( ( M e. RR /\ ( sqrt ` ( 2 x. N ) ) e. RR /\ ( 3 e. RR /\ 0 < 3 ) ) -> ( M <_ ( sqrt ` ( 2 x. N ) ) <-> ( M / 3 ) <_ ( ( sqrt ` ( 2 x. N ) ) / 3 ) ) ) |
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| 247 | 79 30 245 246 | syl3anc | |- ( ph -> ( M <_ ( sqrt ` ( 2 x. N ) ) <-> ( M / 3 ) <_ ( ( sqrt ` ( 2 x. N ) ) / 3 ) ) ) |
| 248 | 241 247 | mpbid | |- ( ph -> ( M / 3 ) <_ ( ( sqrt ` ( 2 x. N ) ) / 3 ) ) |
| 249 | 231 85 238 248 | leadd1dd | |- ( ph -> ( ( M / 3 ) + 2 ) <_ ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) |
| 250 | 229 233 87 237 249 | letrd | |- ( ph -> ( ppi ` M ) <_ ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) |
| 251 | 2t1e2 | |- ( 2 x. 1 ) = 2 |
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| 252 | 9 | nnge1d | |- ( ph -> 1 <_ N ) |
| 253 | 1re | |- 1 e. RR |
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| 254 | lemul2 | |- ( ( 1 e. RR /\ N e. RR /\ ( 2 e. RR /\ 0 < 2 ) ) -> ( 1 <_ N <-> ( 2 x. 1 ) <_ ( 2 x. N ) ) ) |
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| 255 | 253 52 254 | mp3an13 | |- ( N e. RR -> ( 1 <_ N <-> ( 2 x. 1 ) <_ ( 2 x. N ) ) ) |
| 256 | 48 255 | syl | |- ( ph -> ( 1 <_ N <-> ( 2 x. 1 ) <_ ( 2 x. N ) ) ) |
| 257 | 252 256 | mpbid | |- ( ph -> ( 2 x. 1 ) <_ ( 2 x. N ) ) |
| 258 | 251 257 | eqbrtrrid | |- ( ph -> 2 <_ ( 2 x. N ) ) |
| 259 | 20 | eluz1i | |- ( ( 2 x. N ) e. ( ZZ>= ` 2 ) <-> ( ( 2 x. N ) e. ZZ /\ 2 <_ ( 2 x. N ) ) ) |
| 260 | 23 258 259 | sylanbrc | |- ( ph -> ( 2 x. N ) e. ( ZZ>= ` 2 ) ) |
| 261 | eluz2gt1 | |- ( ( 2 x. N ) e. ( ZZ>= ` 2 ) -> 1 < ( 2 x. N ) ) |
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| 262 | 260 261 | syl | |- ( ph -> 1 < ( 2 x. N ) ) |
| 263 | 24 262 229 87 | cxpled | |- ( ph -> ( ( ppi ` M ) <_ ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) <-> ( ( 2 x. N ) ^c ( ppi ` M ) ) <_ ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) ) ) |
| 264 | 250 263 | mpbid | |- ( ph -> ( ( 2 x. N ) ^c ( ppi ` M ) ) <_ ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) ) |
| 265 | 228 264 | eqbrtrrd | |- ( ph -> ( ( 2 x. N ) ^ ( ppi ` M ) ) <_ ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) ) |
| 266 | 78 83 88 226 265 | letrd | |- ( ph -> ( seq 1 ( x. , F ) ` M ) <_ ( ( 2 x. N ) ^c ( ( ( sqrt ` ( 2 x. N ) ) / 3 ) + 2 ) ) ) |