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Mirrors > Home > MPE Home > Th. List > lcmfnnval | Structured version Visualization version GIF version |
Description: The value of the lcm function for a subset of the positive integers. (Contributed by AV, 21-Aug-2020.) (Revised by AV, 16-Sep-2020.) |
Ref | Expression |
---|---|
lcmfnnval | ⊢ ((𝑍 ⊆ ℕ ∧ 𝑍 ∈ Fin) → (lcm‘𝑍) = inf({𝑛 ∈ ℕ ∣ ∀𝑚 ∈ 𝑍 𝑚 ∥ 𝑛}, ℝ, < )) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . . . 4 ⊢ (𝑍 ⊆ ℕ → 𝑍 ⊆ ℕ) | |
2 | nnssz 12520 | . . . 4 ⊢ ℕ ⊆ ℤ | |
3 | 1, 2 | sstrdi 3956 | . . 3 ⊢ (𝑍 ⊆ ℕ → 𝑍 ⊆ ℤ) |
4 | 3 | adantr 481 | . 2 ⊢ ((𝑍 ⊆ ℕ ∧ 𝑍 ∈ Fin) → 𝑍 ⊆ ℤ) |
5 | simpr 485 | . 2 ⊢ ((𝑍 ⊆ ℕ ∧ 𝑍 ∈ Fin) → 𝑍 ∈ Fin) | |
6 | 0nnn 12188 | . . . . 5 ⊢ ¬ 0 ∈ ℕ | |
7 | 6 | nelir 3052 | . . . 4 ⊢ 0 ∉ ℕ |
8 | ssel 3937 | . . . . 5 ⊢ (𝑍 ⊆ ℕ → (0 ∈ 𝑍 → 0 ∈ ℕ)) | |
9 | 8 | nelcon3d 3061 | . . . 4 ⊢ (𝑍 ⊆ ℕ → (0 ∉ ℕ → 0 ∉ 𝑍)) |
10 | 7, 9 | mpi 20 | . . 3 ⊢ (𝑍 ⊆ ℕ → 0 ∉ 𝑍) |
11 | 10 | adantr 481 | . 2 ⊢ ((𝑍 ⊆ ℕ ∧ 𝑍 ∈ Fin) → 0 ∉ 𝑍) |
12 | lcmfn0val 16498 | . 2 ⊢ ((𝑍 ⊆ ℤ ∧ 𝑍 ∈ Fin ∧ 0 ∉ 𝑍) → (lcm‘𝑍) = inf({𝑛 ∈ ℕ ∣ ∀𝑚 ∈ 𝑍 𝑚 ∥ 𝑛}, ℝ, < )) | |
13 | 4, 5, 11, 12 | syl3anc 1371 | 1 ⊢ ((𝑍 ⊆ ℕ ∧ 𝑍 ∈ Fin) → (lcm‘𝑍) = inf({𝑛 ∈ ℕ ∣ ∀𝑚 ∈ 𝑍 𝑚 ∥ 𝑛}, ℝ, < )) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ∉ wnel 3049 ∀wral 3064 {crab 3407 ⊆ wss 3910 class class class wbr 5105 ‘cfv 6496 Fincfn 8882 infcinf 9376 ℝcr 11049 0cc0 11050 < clt 11188 ℕcn 12152 ℤcz 12498 ∥ cdvds 16135 lcmclcmf 16464 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-rep 5242 ax-sep 5256 ax-nul 5263 ax-pow 5320 ax-pr 5384 ax-un 7671 ax-inf2 9576 ax-cnex 11106 ax-resscn 11107 ax-1cn 11108 ax-icn 11109 ax-addcl 11110 ax-addrcl 11111 ax-mulcl 11112 ax-mulrcl 11113 ax-mulcom 11114 ax-addass 11115 ax-mulass 11116 ax-distr 11117 ax-i2m1 11118 ax-1ne0 11119 ax-1rid 11120 ax-rnegex 11121 ax-rrecex 11122 ax-cnre 11123 ax-pre-lttri 11124 ax-pre-lttrn 11125 ax-pre-ltadd 11126 ax-pre-mulgt0 11127 ax-pre-sup 11128 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3065 df-rex 3074 df-rmo 3353 df-reu 3354 df-rab 3408 df-v 3447 df-sbc 3740 df-csb 3856 df-dif 3913 df-un 3915 df-in 3917 df-ss 3927 df-pss 3929 df-nul 4283 df-if 4487 df-pw 4562 df-sn 4587 df-pr 4589 df-op 4593 df-uni 4866 df-int 4908 df-iun 4956 df-br 5106 df-opab 5168 df-mpt 5189 df-tr 5223 df-id 5531 df-eprel 5537 df-po 5545 df-so 5546 df-fr 5588 df-se 5589 df-we 5590 df-xp 5639 df-rel 5640 df-cnv 5641 df-co 5642 df-dm 5643 df-rn 5644 df-res 5645 df-ima 5646 df-pred 6253 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-isom 6505 df-riota 7312 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7802 df-1st 7920 df-2nd 7921 df-frecs 8211 df-wrecs 8242 df-recs 8316 df-rdg 8355 df-1o 8411 df-er 8647 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-sup 9377 df-inf 9378 df-oi 9445 df-card 9874 df-pnf 11190 df-mnf 11191 df-xr 11192 df-ltxr 11193 df-le 11194 df-sub 11386 df-neg 11387 df-div 11812 df-nn 12153 df-2 12215 df-3 12216 df-n0 12413 df-z 12499 df-uz 12763 df-rp 12915 df-fz 13424 df-fzo 13567 df-seq 13906 df-exp 13967 df-hash 14230 df-cj 14983 df-re 14984 df-im 14985 df-sqrt 15119 df-abs 15120 df-clim 15369 df-prod 15788 df-dvds 16136 df-lcmf 16466 |
This theorem is referenced by: (None) |
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