elfzmlbm - Metamath Proof Explorer

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Theorem elfzmlbm 13617

Description: Subtracting the lower bound of a finite set of sequential integers from an element of this set. (Contributed by Alexander van der Vekens, 29-Mar-2018.) (Proof shortened by OpenAI, 25-Mar-2020.)

**Assertion**
Ref	Expression
elfzmlbm	⊢ (𝐾 ∈ (𝑀...𝑁) → (𝐾 − 𝑀) ∈ (0...(𝑁 − 𝑀)))

**Proof of Theorem elfzmlbm**
Step	Hyp	Ref	Expression
1		elfzuz 13503	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝐾 ∈ (ℤ_≥‘𝑀))
2		uznn0sub 12865	. . 3 ⊢ (𝐾 ∈ (ℤ_≥‘𝑀) → (𝐾 − 𝑀) ∈ ℕ₀)
3	1, 2	syl 17	. 2 ⊢ (𝐾 ∈ (𝑀...𝑁) → (𝐾 − 𝑀) ∈ ℕ₀)
4		elfzuz2 13512	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝑁 ∈ (ℤ_≥‘𝑀))
5		uznn0sub 12865	. . 3 ⊢ (𝑁 ∈ (ℤ_≥‘𝑀) → (𝑁 − 𝑀) ∈ ℕ₀)
6	4, 5	syl 17	. 2 ⊢ (𝐾 ∈ (𝑀...𝑁) → (𝑁 − 𝑀) ∈ ℕ₀)
7		elfzelz 13507	. . . 4 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝐾 ∈ ℤ)
8	7	zred 12670	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝐾 ∈ ℝ)
9		elfzel2 13505	. . . 4 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝑁 ∈ ℤ)
10	9	zred 12670	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝑁 ∈ ℝ)
11		elfzel1 13506	. . . 4 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝑀 ∈ ℤ)
12	11	zred 12670	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝑀 ∈ ℝ)
13		elfzle2 13511	. . 3 ⊢ (𝐾 ∈ (𝑀...𝑁) → 𝐾 ≤ 𝑁)
14	8, 10, 12, 13	lesub1dd 11834	. 2 ⊢ (𝐾 ∈ (𝑀...𝑁) → (𝐾 − 𝑀) ≤ (𝑁 − 𝑀))
15		elfz2nn0 13598	. 2 ⊢ ((𝐾 − 𝑀) ∈ (0...(𝑁 − 𝑀)) ↔ ((𝐾 − 𝑀) ∈ ℕ₀ ∧ (𝑁 − 𝑀) ∈ ℕ₀ ∧ (𝐾 − 𝑀) ≤ (𝑁 − 𝑀)))
16	3, 6, 14, 15	syl3anbrc 1340	1 ⊢ (𝐾 ∈ (𝑀...𝑁) → (𝐾 − 𝑀) ∈ (0...(𝑁 − 𝑀)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∈ wcel 2098 class class class wbr 5141 ‘cfv 6537 (class class class)co 7405 0cc0 11112 ≤ cle 11253 − cmin 11448 ℕ₀cn0 12476 ℤ_≥cuz 12826 ...cfz 13490

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2697 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7722 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2704 df-cleq 2718 df-clel 2804 df-nfc 2879 df-ne 2935 df-nel 3041 df-ral 3056 df-rex 3065 df-reu 3371 df-rab 3427 df-v 3470 df-sbc 3773 df-csb 3889 df-dif 3946 df-un 3948 df-in 3950 df-ss 3960 df-pss 3962 df-nul 4318 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6294 df-ord 6361 df-on 6362 df-lim 6363 df-suc 6364 df-iota 6489 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7853 df-1st 7974 df-2nd 7975 df-frecs 8267 df-wrecs 8298 df-recs 8372 df-rdg 8411 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-nn 12217 df-n0 12477 df-z 12563 df-uz 12827 df-fz 13491

This theorem is referenced by: fz1fzo0m1 13686 bcm1k 14280 swrdccatin2 14685 poimirlem24 37025

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