| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 488 | . . . 4 ⊢ 𝐴 ∈ Fin |
| 4 | hashunlei.b | . . . . 5 ⊢ (𝐵 ∈ Fin ∧ (♯‘𝐵) ≤ 𝑀) | |
| 5 | 4 | simpli 488 | . . . 4 ⊢ 𝐵 ∈ Fin |
| 6 | unfi 9155 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (𝐴 ∪ 𝐵) ∈ Fin) | |
| 7 | 3, 5, 6 | mp2an 704 | . . 3 ⊢ (𝐴 ∪ 𝐵) ∈ Fin |
| 8 | 1, 7 | eqeltri 2865 | . 2 ⊢ 𝐶 ∈ Fin |
| 9 | 1 | fveq2i 6885 | . . . 4 ⊢ (♯‘𝐶) = (♯‘(𝐴 ∪ 𝐵)) |
| 10 | hashun2 14419 | . . . . 5 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵))) | |
| 11 | 3, 5, 10 | mp2an 704 | . . . 4 ⊢ (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 12 | 9, 11 | eqbrtri 5136 | . . 3 ⊢ (♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 13 | 2 | simpri 490 | . . . . 5 ⊢ (♯‘𝐴) ≤ 𝐾 |
| 14 | 4 | simpri 490 | . . . . 5 ⊢ (♯‘𝐵) ≤ 𝑀 |
| 15 | hashcl 14392 | . . . . . . . 8 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 16 | 3, 15 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐴) ∈ ℕ0 |
| 17 | 16 | nn0rei 12515 | . . . . . 6 ⊢ (♯‘𝐴) ∈ ℝ |
| 18 | hashcl 14392 | . . . . . . . 8 ⊢ (𝐵 ∈ Fin → (♯‘𝐵) ∈ ℕ0) | |
| 19 | 5, 18 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐵) ∈ ℕ0 |
| 20 | 19 | nn0rei 12515 | . . . . . 6 ⊢ (♯‘𝐵) ∈ ℝ |
| 21 | hashunlei.k | . . . . . . 7 ⊢ 𝐾 ∈ ℕ0 | |
| 22 | 21 | nn0rei 12515 | . . . . . 6 ⊢ 𝐾 ∈ ℝ |
| 23 | hashunlei.m | . . . . . . 7 ⊢ 𝑀 ∈ ℕ0 | |
| 24 | 23 | nn0rei 12515 | . . . . . 6 ⊢ 𝑀 ∈ ℝ |
| 25 | 17, 20, 22, 24 | le2addi 11777 | . . . . 5 ⊢ (((♯‘𝐴) ≤ 𝐾 ∧ (♯‘𝐵) ≤ 𝑀) → ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀)) |
| 26 | 13, 14, 25 | mp2an 704 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀) |
| 27 | hashunlei.n | . . . 4 ⊢ (𝐾 + 𝑀) = 𝑁 | |
| 28 | 26, 27 | breqtri 5140 | . . 3 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁 |
| 29 | hashcl 14392 | . . . . . 6 ⊢ (𝐶 ∈ Fin → (♯‘𝐶) ∈ ℕ0) | |
| 30 | 8, 29 | ax-mp 5 | . . . . 5 ⊢ (♯‘𝐶) ∈ ℕ0 |
| 31 | 30 | nn0rei 12515 | . . . 4 ⊢ (♯‘𝐶) ∈ ℝ |
| 32 | 17, 20 | readdcli 11224 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ∈ ℝ |
| 33 | 22, 24 | readdcli 11224 | . . . . 5 ⊢ (𝐾 + 𝑀) ∈ ℝ |
| 34 | 27, 33 | eqeltrri 2866 | . . . 4 ⊢ 𝑁 ∈ ℝ |
| 35 | 31, 32, 34 | letri 11339 | . . 3 ⊢ (((♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) ∧ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁) → (♯‘𝐶) ≤ 𝑁) |
| 36 | 12, 28, 35 | mp2an 704 | . 2 ⊢ (♯‘𝐶) ≤ 𝑁 |
| 37 | 8, 36 | pm3.2i 475 | 1 ⊢ (𝐶 ∈ Fin ∧ (♯‘𝐶) ≤ 𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 400 = wceq 1567 ∈ wcel 2149 ∪ cun 3911 class class class wbr 5113 ‘cfv 6537 (class class class)co 7411 Fincfn 8943 ℝcr 11099 + caddc 11103 ≤ cle 11244 ℕ0cn0 12504 ♯chash 14366 |
| 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 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| 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 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-int 4917 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-1o 8453 df-oadd 8457 df-er 8694 df-en 8944 df-dom 8945 df-sdom 8946 df-fin 8947 df-dju 9887 df-card 9925 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-n0 12505 df-xnn0 12578 df-z 12592 df-uz 12863 df-fz 13536 df-hash 14367 |
| This theorem is referenced by: hashprlei 14505 hashtplei 14521 kur14lem8 35604 |
| Copyright terms: Public domain | W3C validator |