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| Mirrors > Home > MPE Home > Th. List > hashunlei | Structured version Visualization version GIF version | ||
| Description: Get an upper bound on a concretely specified finite set. Induction step: union of two finite bounded sets. (Contributed by Mario Carneiro, 11-Feb-2015.) |
| Ref | Expression |
|---|---|
| hashunlei.c | ⊢ 𝐶 = (𝐴 ∪ 𝐵) |
| hashunlei.a | ⊢ (𝐴 ∈ Fin ∧ (♯‘𝐴) ≤ 𝐾) |
| hashunlei.b | ⊢ (𝐵 ∈ Fin ∧ (♯‘𝐵) ≤ 𝑀) |
| hashunlei.k | ⊢ 𝐾 ∈ ℕ0 |
| hashunlei.m | ⊢ 𝑀 ∈ ℕ0 |
| hashunlei.n | ⊢ (𝐾 + 𝑀) = 𝑁 |
| Ref | Expression |
|---|---|
| hashunlei | ⊢ (𝐶 ∈ Fin ∧ (♯‘𝐶) ≤ 𝑁) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hashunlei.c | . . 3 ⊢ 𝐶 = (𝐴 ∪ 𝐵) | |
| 2 | hashunlei.a | . . . . 5 ⊢ (𝐴 ∈ Fin ∧ (♯‘𝐴) ≤ 𝐾) | |
| 3 | 2 | simpli 489 | . . . 4 ⊢ 𝐴 ∈ Fin |
| 4 | hashunlei.b | . . . . 5 ⊢ (𝐵 ∈ Fin ∧ (♯‘𝐵) ≤ 𝑀) | |
| 5 | 4 | simpli 489 | . . . 4 ⊢ 𝐵 ∈ Fin |
| 6 | unfi 9168 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (𝐴 ∪ 𝐵) ∈ Fin) | |
| 7 | 3, 5, 6 | mp2an 705 | . . 3 ⊢ (𝐴 ∪ 𝐵) ∈ Fin |
| 8 | 1, 7 | eqeltri 2856 | . 2 ⊢ 𝐶 ∈ Fin |
| 9 | 1 | fveq2i 6882 | . . . 4 ⊢ (♯‘𝐶) = (♯‘(𝐴 ∪ 𝐵)) |
| 10 | hashun2 14450 | . . . . 5 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵))) | |
| 11 | 3, 5, 10 | mp2an 705 | . . . 4 ⊢ (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 12 | 9, 11 | eqbrtri 5126 | . . 3 ⊢ (♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 13 | 2 | simpri 491 | . . . . 5 ⊢ (♯‘𝐴) ≤ 𝐾 |
| 14 | 4 | simpri 491 | . . . . 5 ⊢ (♯‘𝐵) ≤ 𝑀 |
| 15 | hashcl 14423 | . . . . . . . 8 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 16 | 3, 15 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐴) ∈ ℕ0 |
| 17 | 16 | nn0rei 12542 | . . . . . 6 ⊢ (♯‘𝐴) ∈ ℝ |
| 18 | hashcl 14423 | . . . . . . . 8 ⊢ (𝐵 ∈ Fin → (♯‘𝐵) ∈ ℕ0) | |
| 19 | 5, 18 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐵) ∈ ℕ0 |
| 20 | 19 | nn0rei 12542 | . . . . . 6 ⊢ (♯‘𝐵) ∈ ℝ |
| 21 | hashunlei.k | . . . . . . 7 ⊢ 𝐾 ∈ ℕ0 | |
| 22 | 21 | nn0rei 12542 | . . . . . 6 ⊢ 𝐾 ∈ ℝ |
| 23 | hashunlei.m | . . . . . . 7 ⊢ 𝑀 ∈ ℕ0 | |
| 24 | 23 | nn0rei 12542 | . . . . . 6 ⊢ 𝑀 ∈ ℝ |
| 25 | 17, 20, 22, 24 | le2addi 11804 | . . . . 5 ⊢ (((♯‘𝐴) ≤ 𝐾 ∧ (♯‘𝐵) ≤ 𝑀) → ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀)) |
| 26 | 13, 14, 25 | mp2an 705 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀) |
| 27 | hashunlei.n | . . . 4 ⊢ (𝐾 + 𝑀) = 𝑁 | |
| 28 | 26, 27 | breqtri 5130 | . . 3 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁 |
| 29 | hashcl 14423 | . . . . . 6 ⊢ (𝐶 ∈ Fin → (♯‘𝐶) ∈ ℕ0) | |
| 30 | 8, 29 | ax-mp 5 | . . . . 5 ⊢ (♯‘𝐶) ∈ ℕ0 |
| 31 | 30 | nn0rei 12542 | . . . 4 ⊢ (♯‘𝐶) ∈ ℝ |
| 32 | 17, 20 | readdcli 11251 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ∈ ℝ |
| 33 | 22, 24 | readdcli 11251 | . . . . 5 ⊢ (𝐾 + 𝑀) ∈ ℝ |
| 34 | 27, 33 | eqeltrri 2857 | . . . 4 ⊢ 𝑁 ∈ ℝ |
| 35 | 31, 32, 34 | letri 11366 | . . 3 ⊢ (((♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) ∧ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁) → (♯‘𝐶) ≤ 𝑁) |
| 36 | 12, 28, 35 | mp2an 705 | . 2 ⊢ (♯‘𝐶) ≤ 𝑁 |
| 37 | 8, 36 | pm3.2i 476 | 1 ⊢ (𝐶 ∈ Fin ∧ (♯‘𝐶) ≤ 𝑁) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∪ cun 3897 class class class wbr 5103 ‘cfv 6533 (class class class)co 7414 Fincfn 8955 ℝcr 11126 + caddc 11130 ≤ cle 11271 ℕ0cn0 12531 ♯chash 14397 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 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 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-1st 7987 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8458 df-oadd 8462 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-dju 9909 df-card 9947 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-n0 12532 df-xnn0 12605 df-z 12619 df-uz 12891 df-fz 13565 df-hash 14398 |
| This theorem is used by: hashprlei 14536 hashtplei 14552 kur14lem8 35795 |
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