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Mirrors > Home > MPE Home > Th. List > Mathboxes > hashf2 | Structured version Visualization version GIF version |
Description: Lemma for hasheuni 32159. (Contributed by Thierry Arnoux, 19-Nov-2016.) |
Ref | Expression |
---|---|
hashf2 | ⊢ ♯:V⟶(0[,]+∞) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hashf 14125 | . 2 ⊢ ♯:V⟶(ℕ0 ∪ {+∞}) | |
2 | nn0z 12416 | . . . . . 6 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ ℤ) | |
3 | zre 12396 | . . . . . 6 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℝ) | |
4 | rexr 11094 | . . . . . 6 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℝ*) | |
5 | 2, 3, 4 | 3syl 18 | . . . . 5 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ ℝ*) |
6 | nn0ge0 12331 | . . . . 5 ⊢ (𝑥 ∈ ℕ0 → 0 ≤ 𝑥) | |
7 | elxrge0 13262 | . . . . 5 ⊢ (𝑥 ∈ (0[,]+∞) ↔ (𝑥 ∈ ℝ* ∧ 0 ≤ 𝑥)) | |
8 | 5, 6, 7 | sylanbrc 583 | . . . 4 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ (0[,]+∞)) |
9 | 8 | ssriv 3935 | . . 3 ⊢ ℕ0 ⊆ (0[,]+∞) |
10 | 0xr 11095 | . . . . 5 ⊢ 0 ∈ ℝ* | |
11 | pnfxr 11102 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
12 | 0lepnf 12941 | . . . . 5 ⊢ 0 ≤ +∞ | |
13 | ubicc2 13270 | . . . . 5 ⊢ ((0 ∈ ℝ* ∧ +∞ ∈ ℝ* ∧ 0 ≤ +∞) → +∞ ∈ (0[,]+∞)) | |
14 | 10, 11, 12, 13 | mp3an 1460 | . . . 4 ⊢ +∞ ∈ (0[,]+∞) |
15 | snssi 4753 | . . . 4 ⊢ (+∞ ∈ (0[,]+∞) → {+∞} ⊆ (0[,]+∞)) | |
16 | 14, 15 | ax-mp 5 | . . 3 ⊢ {+∞} ⊆ (0[,]+∞) |
17 | 9, 16 | unssi 4130 | . 2 ⊢ (ℕ0 ∪ {+∞}) ⊆ (0[,]+∞) |
18 | fss 6654 | . 2 ⊢ ((♯:V⟶(ℕ0 ∪ {+∞}) ∧ (ℕ0 ∪ {+∞}) ⊆ (0[,]+∞)) → ♯:V⟶(0[,]+∞)) | |
19 | 1, 17, 18 | mp2an 689 | 1 ⊢ ♯:V⟶(0[,]+∞) |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2105 Vcvv 3441 ∪ cun 3895 ⊆ wss 3897 {csn 4571 class class class wbr 5087 ⟶wf 6461 (class class class)co 7315 ℝcr 10943 0cc0 10944 +∞cpnf 11079 ℝ*cxr 11081 ≤ cle 11083 ℕ0cn0 12306 ℤcz 12392 [,]cicc 13155 ♯chash 14117 |
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-int 4893 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-2nd 7877 df-frecs 8144 df-wrecs 8175 df-recs 8249 df-rdg 8288 df-1o 8344 df-er 8546 df-en 8782 df-dom 8783 df-sdom 8784 df-fin 8785 df-card 9768 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-xnn0 12379 df-z 12393 df-uz 12656 df-icc 13159 df-hash 14118 |
This theorem is referenced by: hasheuni 32159 cntmeas 32300 |
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