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Mirrors > Home > MPE Home > Th. List > seqf2 | Structured version Visualization version GIF version |
Description: Range of the recursive sequence builder. (Contributed by Mario Carneiro, 24-Jun-2013.) (Revised by Mario Carneiro, 27-May-2014.) |
Ref | Expression |
---|---|
seqcl2.1 | ⊢ (𝜑 → (𝐹‘𝑀) ∈ 𝐶) |
seqcl2.2 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐶 ∧ 𝑦 ∈ 𝐷)) → (𝑥 + 𝑦) ∈ 𝐶) |
seqf2.3 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
seqf2.4 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
seqf2.5 | ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘(𝑀 + 1))) → (𝐹‘𝑥) ∈ 𝐷) |
Ref | Expression |
---|---|
seqf2 | ⊢ (𝜑 → seq𝑀( + , 𝐹):𝑍⟶𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | seqf2.4 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
2 | seqfn 13806 | . . . 4 ⊢ (𝑀 ∈ ℤ → seq𝑀( + , 𝐹) Fn (ℤ≥‘𝑀)) | |
3 | 1, 2 | syl 17 | . . 3 ⊢ (𝜑 → seq𝑀( + , 𝐹) Fn (ℤ≥‘𝑀)) |
4 | seqcl2.1 | . . . . . 6 ⊢ (𝜑 → (𝐹‘𝑀) ∈ 𝐶) | |
5 | 4 | adantr 481 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝐹‘𝑀) ∈ 𝐶) |
6 | seqcl2.2 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐶 ∧ 𝑦 ∈ 𝐷)) → (𝑥 + 𝑦) ∈ 𝐶) | |
7 | 6 | adantlr 712 | . . . . 5 ⊢ (((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) ∧ (𝑥 ∈ 𝐶 ∧ 𝑦 ∈ 𝐷)) → (𝑥 + 𝑦) ∈ 𝐶) |
8 | simpr 485 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → 𝑘 ∈ (ℤ≥‘𝑀)) | |
9 | elfzuz 13325 | . . . . . . 7 ⊢ (𝑥 ∈ ((𝑀 + 1)...𝑘) → 𝑥 ∈ (ℤ≥‘(𝑀 + 1))) | |
10 | seqf2.5 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ (ℤ≥‘(𝑀 + 1))) → (𝐹‘𝑥) ∈ 𝐷) | |
11 | 9, 10 | sylan2 593 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ((𝑀 + 1)...𝑘)) → (𝐹‘𝑥) ∈ 𝐷) |
12 | 11 | adantlr 712 | . . . . 5 ⊢ (((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) ∧ 𝑥 ∈ ((𝑀 + 1)...𝑘)) → (𝐹‘𝑥) ∈ 𝐷) |
13 | 5, 7, 8, 12 | seqcl2 13814 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (seq𝑀( + , 𝐹)‘𝑘) ∈ 𝐶) |
14 | 13 | ralrimiva 3140 | . . 3 ⊢ (𝜑 → ∀𝑘 ∈ (ℤ≥‘𝑀)(seq𝑀( + , 𝐹)‘𝑘) ∈ 𝐶) |
15 | ffnfv 7031 | . . 3 ⊢ (seq𝑀( + , 𝐹):(ℤ≥‘𝑀)⟶𝐶 ↔ (seq𝑀( + , 𝐹) Fn (ℤ≥‘𝑀) ∧ ∀𝑘 ∈ (ℤ≥‘𝑀)(seq𝑀( + , 𝐹)‘𝑘) ∈ 𝐶)) | |
16 | 3, 14, 15 | sylanbrc 583 | . 2 ⊢ (𝜑 → seq𝑀( + , 𝐹):(ℤ≥‘𝑀)⟶𝐶) |
17 | seqf2.3 | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
18 | 17 | feq2i 6629 | . 2 ⊢ (seq𝑀( + , 𝐹):𝑍⟶𝐶 ↔ seq𝑀( + , 𝐹):(ℤ≥‘𝑀)⟶𝐶) |
19 | 16, 18 | sylibr 233 | 1 ⊢ (𝜑 → seq𝑀( + , 𝐹):𝑍⟶𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1540 ∈ wcel 2105 ∀wral 3062 Fn wfn 6460 ⟶wf 6461 ‘cfv 6465 (class class class)co 7315 1c1 10945 + caddc 10947 ℤcz 12392 ℤ≥cuz 12655 ...cfz 13312 seqcseq 13794 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2708 ax-sep 5238 ax-nul 5245 ax-pow 5303 ax-pr 5367 ax-un 7628 ax-cnex 11000 ax-resscn 11001 ax-1cn 11002 ax-icn 11003 ax-addcl 11004 ax-addrcl 11005 ax-mulcl 11006 ax-mulrcl 11007 ax-mulcom 11008 ax-addass 11009 ax-mulass 11010 ax-distr 11011 ax-i2m1 11012 ax-1ne0 11013 ax-1rid 11014 ax-rnegex 11015 ax-rrecex 11016 ax-cnre 11017 ax-pre-lttri 11018 ax-pre-lttrn 11019 ax-pre-ltadd 11020 ax-pre-mulgt0 11021 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-reu 3351 df-rab 3405 df-v 3443 df-sbc 3727 df-csb 3843 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3916 df-nul 4268 df-if 4472 df-pw 4547 df-sn 4572 df-pr 4574 df-op 4578 df-uni 4851 df-iun 4939 df-br 5088 df-opab 5150 df-mpt 5171 df-tr 5205 df-id 5507 df-eprel 5513 df-po 5521 df-so 5522 df-fr 5562 df-we 5564 df-xp 5613 df-rel 5614 df-cnv 5615 df-co 5616 df-dm 5617 df-rn 5618 df-res 5619 df-ima 5620 df-pred 6224 df-ord 6291 df-on 6292 df-lim 6293 df-suc 6294 df-iota 6417 df-fun 6467 df-fn 6468 df-f 6469 df-f1 6470 df-fo 6471 df-f1o 6472 df-fv 6473 df-riota 7272 df-ov 7318 df-oprab 7319 df-mpo 7320 df-om 7758 df-1st 7876 df-2nd 7877 df-frecs 8144 df-wrecs 8175 df-recs 8249 df-rdg 8288 df-er 8546 df-en 8782 df-dom 8783 df-sdom 8784 df-pnf 11084 df-mnf 11085 df-xr 11086 df-ltxr 11087 df-le 11088 df-sub 11280 df-neg 11281 df-nn 12047 df-n0 12307 df-z 12393 df-uz 12656 df-fz 13313 df-seq 13795 |
This theorem is referenced by: seqf 13817 ruclem6 16016 sadcf 16232 smupf 16257 sseqfv2 32467 |
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