Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > monoord2xr | Structured version Visualization version GIF version |
Description: Ordering relation for a monotonic sequence, decreasing case. (Contributed by Glauco Siliprandi, 13-Feb-2022.) |
Ref | Expression |
---|---|
monoord2xr.p | ⊢ Ⅎ𝑘𝜑 |
monoord2xr.k | ⊢ Ⅎ𝑘𝐹 |
monoord2xr.n | ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) |
monoord2xr.x | ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...𝑁)) → (𝐹‘𝑘) ∈ ℝ*) |
monoord2xr.l | ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑘 + 1)) ≤ (𝐹‘𝑘)) |
Ref | Expression |
---|---|
monoord2xr | ⊢ (𝜑 → (𝐹‘𝑁) ≤ (𝐹‘𝑀)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | monoord2xr.n | . 2 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘𝑀)) | |
2 | monoord2xr.p | . . . . 5 ⊢ Ⅎ𝑘𝜑 | |
3 | nfv 1911 | . . . . 5 ⊢ Ⅎ𝑘 𝑗 ∈ (𝑀...𝑁) | |
4 | 2, 3 | nfan 1896 | . . . 4 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) |
5 | monoord2xr.k | . . . . . 6 ⊢ Ⅎ𝑘𝐹 | |
6 | nfcv 2977 | . . . . . 6 ⊢ Ⅎ𝑘𝑗 | |
7 | 5, 6 | nffv 6674 | . . . . 5 ⊢ Ⅎ𝑘(𝐹‘𝑗) |
8 | nfcv 2977 | . . . . 5 ⊢ Ⅎ𝑘ℝ* | |
9 | 7, 8 | nfel 2992 | . . . 4 ⊢ Ⅎ𝑘(𝐹‘𝑗) ∈ ℝ* |
10 | 4, 9 | nfim 1893 | . . 3 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → (𝐹‘𝑗) ∈ ℝ*) |
11 | eleq1w 2895 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ (𝑀...𝑁) ↔ 𝑗 ∈ (𝑀...𝑁))) | |
12 | 11 | anbi2d 630 | . . . 4 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ (𝑀...𝑁)) ↔ (𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)))) |
13 | fveq2 6664 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐹‘𝑘) = (𝐹‘𝑗)) | |
14 | 13 | eleq1d 2897 | . . . 4 ⊢ (𝑘 = 𝑗 → ((𝐹‘𝑘) ∈ ℝ* ↔ (𝐹‘𝑗) ∈ ℝ*)) |
15 | 12, 14 | imbi12d 347 | . . 3 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ (𝑀...𝑁)) → (𝐹‘𝑘) ∈ ℝ*) ↔ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → (𝐹‘𝑗) ∈ ℝ*))) |
16 | monoord2xr.x | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...𝑁)) → (𝐹‘𝑘) ∈ ℝ*) | |
17 | 10, 15, 16 | chvarfv 2238 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → (𝐹‘𝑗) ∈ ℝ*) |
18 | nfv 1911 | . . . . 5 ⊢ Ⅎ𝑘 𝑗 ∈ (𝑀...(𝑁 − 1)) | |
19 | 2, 18 | nfan 1896 | . . . 4 ⊢ Ⅎ𝑘(𝜑 ∧ 𝑗 ∈ (𝑀...(𝑁 − 1))) |
20 | nfcv 2977 | . . . . . 6 ⊢ Ⅎ𝑘(𝑗 + 1) | |
21 | 5, 20 | nffv 6674 | . . . . 5 ⊢ Ⅎ𝑘(𝐹‘(𝑗 + 1)) |
22 | nfcv 2977 | . . . . 5 ⊢ Ⅎ𝑘 ≤ | |
23 | 21, 22, 7 | nfbr 5105 | . . . 4 ⊢ Ⅎ𝑘(𝐹‘(𝑗 + 1)) ≤ (𝐹‘𝑗) |
24 | 19, 23 | nfim 1893 | . . 3 ⊢ Ⅎ𝑘((𝜑 ∧ 𝑗 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑗 + 1)) ≤ (𝐹‘𝑗)) |
25 | eleq1w 2895 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝑘 ∈ (𝑀...(𝑁 − 1)) ↔ 𝑗 ∈ (𝑀...(𝑁 − 1)))) | |
26 | 25 | anbi2d 630 | . . . 4 ⊢ (𝑘 = 𝑗 → ((𝜑 ∧ 𝑘 ∈ (𝑀...(𝑁 − 1))) ↔ (𝜑 ∧ 𝑗 ∈ (𝑀...(𝑁 − 1))))) |
27 | fvoveq1 7173 | . . . . 5 ⊢ (𝑘 = 𝑗 → (𝐹‘(𝑘 + 1)) = (𝐹‘(𝑗 + 1))) | |
28 | 27, 13 | breq12d 5071 | . . . 4 ⊢ (𝑘 = 𝑗 → ((𝐹‘(𝑘 + 1)) ≤ (𝐹‘𝑘) ↔ (𝐹‘(𝑗 + 1)) ≤ (𝐹‘𝑗))) |
29 | 26, 28 | imbi12d 347 | . . 3 ⊢ (𝑘 = 𝑗 → (((𝜑 ∧ 𝑘 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑘 + 1)) ≤ (𝐹‘𝑘)) ↔ ((𝜑 ∧ 𝑗 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑗 + 1)) ≤ (𝐹‘𝑗)))) |
30 | monoord2xr.l | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑘 + 1)) ≤ (𝐹‘𝑘)) | |
31 | 24, 29, 30 | chvarfv 2238 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...(𝑁 − 1))) → (𝐹‘(𝑗 + 1)) ≤ (𝐹‘𝑗)) |
32 | 1, 17, 31 | monoord2xrv 41753 | 1 ⊢ (𝜑 → (𝐹‘𝑁) ≤ (𝐹‘𝑀)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1533 Ⅎwnf 1780 ∈ wcel 2110 Ⅎwnfc 2961 class class class wbr 5058 ‘cfv 6349 (class class class)co 7150 1c1 10532 + caddc 10534 ℝ*cxr 10668 ≤ cle 10670 − cmin 10864 ℤ≥cuz 12237 ...cfz 12886 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-cnex 10587 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-tr 5165 df-id 5454 df-eprel 5459 df-po 5468 df-so 5469 df-fr 5508 df-we 5510 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-pred 6142 df-ord 6188 df-on 6189 df-lim 6190 df-suc 6191 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-om 7575 df-1st 7683 df-2nd 7684 df-wrecs 7941 df-recs 8002 df-rdg 8040 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-nn 11633 df-n0 11892 df-z 11976 df-uz 12238 df-xneg 12501 df-fz 12887 |
This theorem is referenced by: (None) |
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