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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 483 | . . . 4 ⊢ 𝐴 ∈ Fin |
| 4 | hashunlei.b | . . . . 5 ⊢ (𝐵 ∈ Fin ∧ (♯‘𝐵) ≤ 𝑀) | |
| 5 | 4 | simpli 483 | . . . 4 ⊢ 𝐵 ∈ Fin |
| 6 | unfi 9099 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (𝐴 ∪ 𝐵) ∈ Fin) | |
| 7 | 3, 5, 6 | mp2an 693 | . . 3 ⊢ (𝐴 ∪ 𝐵) ∈ Fin |
| 8 | 1, 7 | eqeltri 2833 | . 2 ⊢ 𝐶 ∈ Fin |
| 9 | 1 | fveq2i 6838 | . . . 4 ⊢ (♯‘𝐶) = (♯‘(𝐴 ∪ 𝐵)) |
| 10 | hashun2 14339 | . . . . 5 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵))) | |
| 11 | 3, 5, 10 | mp2an 693 | . . . 4 ⊢ (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 12 | 9, 11 | eqbrtri 5107 | . . 3 ⊢ (♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 13 | 2 | simpri 485 | . . . . 5 ⊢ (♯‘𝐴) ≤ 𝐾 |
| 14 | 4 | simpri 485 | . . . . 5 ⊢ (♯‘𝐵) ≤ 𝑀 |
| 15 | hashcl 14312 | . . . . . . . 8 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 16 | 3, 15 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐴) ∈ ℕ0 |
| 17 | 16 | nn0rei 12442 | . . . . . 6 ⊢ (♯‘𝐴) ∈ ℝ |
| 18 | hashcl 14312 | . . . . . . . 8 ⊢ (𝐵 ∈ Fin → (♯‘𝐵) ∈ ℕ0) | |
| 19 | 5, 18 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐵) ∈ ℕ0 |
| 20 | 19 | nn0rei 12442 | . . . . . 6 ⊢ (♯‘𝐵) ∈ ℝ |
| 21 | hashunlei.k | . . . . . . 7 ⊢ 𝐾 ∈ ℕ0 | |
| 22 | 21 | nn0rei 12442 | . . . . . 6 ⊢ 𝐾 ∈ ℝ |
| 23 | hashunlei.m | . . . . . . 7 ⊢ 𝑀 ∈ ℕ0 | |
| 24 | 23 | nn0rei 12442 | . . . . . 6 ⊢ 𝑀 ∈ ℝ |
| 25 | 17, 20, 22, 24 | le2addi 11707 | . . . . 5 ⊢ (((♯‘𝐴) ≤ 𝐾 ∧ (♯‘𝐵) ≤ 𝑀) → ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀)) |
| 26 | 13, 14, 25 | mp2an 693 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ (𝐾 + 𝑀) |
| 27 | hashunlei.n | . . . 4 ⊢ (𝐾 + 𝑀) = 𝑁 | |
| 28 | 26, 27 | breqtri 5111 | . . 3 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁 |
| 29 | hashcl 14312 | . . . . . 6 ⊢ (𝐶 ∈ Fin → (♯‘𝐶) ∈ ℕ0) | |
| 30 | 8, 29 | ax-mp 5 | . . . . 5 ⊢ (♯‘𝐶) ∈ ℕ0 |
| 31 | 30 | nn0rei 12442 | . . . 4 ⊢ (♯‘𝐶) ∈ ℝ |
| 32 | 17, 20 | readdcli 11154 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ∈ ℝ |
| 33 | 22, 24 | readdcli 11154 | . . . . 5 ⊢ (𝐾 + 𝑀) ∈ ℝ |
| 34 | 27, 33 | eqeltrri 2834 | . . . 4 ⊢ 𝑁 ∈ ℝ |
| 35 | 31, 32, 34 | letri 11269 | . . 3 ⊢ (((♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) ∧ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁) → (♯‘𝐶) ≤ 𝑁) |
| 36 | 12, 28, 35 | mp2an 693 | . 2 ⊢ (♯‘𝐶) ≤ 𝑁 |
| 37 | 8, 36 | pm3.2i 470 | 1 ⊢ (𝐶 ∈ Fin ∧ (♯‘𝐶) ≤ 𝑁) |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∪ cun 3888 class class class wbr 5086 ‘cfv 6493 (class class class)co 7361 Fincfn 8887 ℝcr 11031 + caddc 11035 ≤ cle 11174 ℕ0cn0 12431 ♯chash 14286 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-resscn 11089 ax-1cn 11090 ax-icn 11091 ax-addcl 11092 ax-addrcl 11093 ax-mulcl 11094 ax-mulrcl 11095 ax-mulcom 11096 ax-addass 11097 ax-mulass 11098 ax-distr 11099 ax-i2m1 11100 ax-1ne0 11101 ax-1rid 11102 ax-rnegex 11103 ax-rrecex 11104 ax-cnre 11105 ax-pre-lttri 11106 ax-pre-lttrn 11107 ax-pre-ltadd 11108 ax-pre-mulgt0 11109 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-1o 8399 df-oadd 8403 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-dju 9819 df-card 9857 df-pnf 11175 df-mnf 11176 df-xr 11177 df-ltxr 11178 df-le 11179 df-sub 11373 df-neg 11374 df-nn 12169 df-n0 12432 df-xnn0 12505 df-z 12519 df-uz 12783 df-fz 13456 df-hash 14287 |
| This theorem is referenced by: hashprlei 14424 hashtplei 14440 kur14lem8 35414 |
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