| Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > hashf2 | Structured version Visualization version GIF version | ||
| Description: Lemma for hasheuni 34416. (Contributed by Thierry Arnoux, 19-Nov-2016.) |
| Ref | Expression |
|---|---|
| hashf2 | ⊢ ♯:V⟶(0[,]+∞) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hashf 14370 | . 2 ⊢ ♯:V⟶(ℕ0 ∪ {+∞}) | |
| 2 | nn0z 12611 | . . . . . 6 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ ℤ) | |
| 3 | zre 12591 | . . . . . 6 ⊢ (𝑥 ∈ ℤ → 𝑥 ∈ ℝ) | |
| 4 | rexr 11251 | . . . . . 6 ⊢ (𝑥 ∈ ℝ → 𝑥 ∈ ℝ*) | |
| 5 | 2, 3, 4 | 3syl 19 | . . . . 5 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ ℝ*) |
| 6 | nn0ge0 12525 | . . . . 5 ⊢ (𝑥 ∈ ℕ0 → 0 ≤ 𝑥) | |
| 7 | elxrge0 13480 | . . . . 5 ⊢ (𝑥 ∈ (0[,]+∞) ↔ (𝑥 ∈ ℝ* ∧ 0 ≤ 𝑥)) | |
| 8 | 5, 6, 7 | sylanbrc 594 | . . . 4 ⊢ (𝑥 ∈ ℕ0 → 𝑥 ∈ (0[,]+∞)) |
| 9 | 8 | ssriv 3949 | . . 3 ⊢ ℕ0 ⊆ (0[,]+∞) |
| 10 | 0xr 11252 | . . . . 5 ⊢ 0 ∈ ℝ* | |
| 11 | pnfxr 11259 | . . . . 5 ⊢ +∞ ∈ ℝ* | |
| 12 | 0lepnf 13154 | . . . . 5 ⊢ 0 ≤ +∞ | |
| 13 | ubicc2 13488 | . . . . 5 ⊢ ((0 ∈ ℝ* ∧ +∞ ∈ ℝ* ∧ 0 ≤ +∞) → +∞ ∈ (0[,]+∞)) | |
| 14 | 10, 11, 12, 13 | mp3an 1487 | . . . 4 ⊢ +∞ ∈ (0[,]+∞) |
| 15 | snssi 4753 | . . . 4 ⊢ (+∞ ∈ (0[,]+∞) → {+∞} ⊆ (0[,]+∞)) | |
| 16 | 14, 15 | ax-mp 5 | . . 3 ⊢ {+∞} ⊆ (0[,]+∞) |
| 17 | 9, 16 | unssi 4152 | . 2 ⊢ (ℕ0 ∪ {+∞}) ⊆ (0[,]+∞) |
| 18 | fss 6720 | . 2 ⊢ ((♯:V⟶(ℕ0 ∪ {+∞}) ∧ (ℕ0 ∪ {+∞}) ⊆ (0[,]+∞)) → ♯:V⟶(0[,]+∞)) | |
| 19 | 1, 17, 18 | mp2an 704 | 1 ⊢ ♯:V⟶(0[,]+∞) |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2149 Vcvv 3463 ∪ cun 3911 ⊆ wss 3913 {csn 4591 class class class wbr 5110 ⟶wf 6529 (class class class)co 7408 ℝcr 11095 0cc0 11096 +∞cpnf 11236 ℝ*cxr 11238 ≤ cle 11240 ℕ0cn0 12500 ℤcz 12587 [,]cicc 13371 ♯chash 14362 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5258 ax-nul 5268 ax-pow 5334 ax-pr 5402 ax-un 7730 ax-cnex 11152 ax-resscn 11153 ax-1cn 11154 ax-icn 11155 ax-addcl 11156 ax-addrcl 11157 ax-mulcl 11158 ax-mulrcl 11159 ax-mulcom 11160 ax-addass 11161 ax-mulass 11162 ax-distr 11163 ax-i2m1 11164 ax-1ne0 11165 ax-1rid 11166 ax-rnegex 11167 ax-rrecex 11168 ax-cnre 11169 ax-pre-lttri 11170 ax-pre-lttrn 11171 ax-pre-ltadd 11172 ax-pre-mulgt0 11173 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-int 4914 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7859 df-2nd 7983 df-frecs 8274 df-wrecs 8305 df-recs 8354 df-rdg 8393 df-1o 8449 df-er 8690 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-card 9921 df-pnf 11241 df-mnf 11242 df-xr 11243 df-ltxr 11244 df-le 11245 df-sub 11439 df-neg 11440 df-nn 12230 df-n0 12501 df-xnn0 12574 df-z 12588 df-uz 12859 df-icc 13375 df-hash 14363 |
| This theorem is referenced by: hasheuni 34416 cntmeas 34557 |
| Copyright terms: Public domain | W3C validator |