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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 9162 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (𝐴 ∪ 𝐵) ∈ Fin) | |
| 7 | 3, 5, 6 | mp2an 705 | . . 3 ⊢ (𝐴 ∪ 𝐵) ∈ Fin |
| 8 | 1, 7 | eqeltri 2861 | . 2 ⊢ 𝐶 ∈ Fin |
| 9 | 1 | fveq2i 6888 | . . . 4 ⊢ (♯‘𝐶) = (♯‘(𝐴 ∪ 𝐵)) |
| 10 | hashun2 14439 | . . . . 5 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ Fin) → (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵))) | |
| 11 | 3, 5, 10 | mp2an 705 | . . . 4 ⊢ (♯‘(𝐴 ∪ 𝐵)) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 12 | 9, 11 | eqbrtri 5134 | . . 3 ⊢ (♯‘𝐶) ≤ ((♯‘𝐴) + (♯‘𝐵)) |
| 13 | 2 | simpri 491 | . . . . 5 ⊢ (♯‘𝐴) ≤ 𝐾 |
| 14 | 4 | simpri 491 | . . . . 5 ⊢ (♯‘𝐵) ≤ 𝑀 |
| 15 | hashcl 14412 | . . . . . . . 8 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 16 | 3, 15 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐴) ∈ ℕ0 |
| 17 | 16 | nn0rei 12532 | . . . . . 6 ⊢ (♯‘𝐴) ∈ ℝ |
| 18 | hashcl 14412 | . . . . . . . 8 ⊢ (𝐵 ∈ Fin → (♯‘𝐵) ∈ ℕ0) | |
| 19 | 5, 18 | ax-mp 5 | . . . . . . 7 ⊢ (♯‘𝐵) ∈ ℕ0 |
| 20 | 19 | nn0rei 12532 | . . . . . 6 ⊢ (♯‘𝐵) ∈ ℝ |
| 21 | hashunlei.k | . . . . . . 7 ⊢ 𝐾 ∈ ℕ0 | |
| 22 | 21 | nn0rei 12532 | . . . . . 6 ⊢ 𝐾 ∈ ℝ |
| 23 | hashunlei.m | . . . . . . 7 ⊢ 𝑀 ∈ ℕ0 | |
| 24 | 23 | nn0rei 12532 | . . . . . 6 ⊢ 𝑀 ∈ ℝ |
| 25 | 17, 20, 22, 24 | le2addi 11794 | . . . . 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 5138 | . . 3 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ≤ 𝑁 |
| 29 | hashcl 14412 | . . . . . 6 ⊢ (𝐶 ∈ Fin → (♯‘𝐶) ∈ ℕ0) | |
| 30 | 8, 29 | ax-mp 5 | . . . . 5 ⊢ (♯‘𝐶) ∈ ℕ0 |
| 31 | 30 | nn0rei 12532 | . . . 4 ⊢ (♯‘𝐶) ∈ ℝ |
| 32 | 17, 20 | readdcli 11241 | . . . 4 ⊢ ((♯‘𝐴) + (♯‘𝐵)) ∈ ℝ |
| 33 | 22, 24 | readdcli 11241 | . . . . 5 ⊢ (𝐾 + 𝑀) ∈ ℝ |
| 34 | 27, 33 | eqeltrri 2862 | . . . 4 ⊢ 𝑁 ∈ ℝ |
| 35 | 31, 32, 34 | letri 11356 | . . 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 2146 ∪ cun 3904 class class class wbr 5111 ‘cfv 6540 (class class class)co 7419 Fincfn 8949 ℝcr 11116 + caddc 11120 ≤ cle 11261 ℕ0cn0 12521 ♯chash 14386 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11173 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 ax-pre-mulgt0 11194 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-1st 7992 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-oadd 8463 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-fin 8953 df-dju 9903 df-card 9941 df-pnf 11262 df-mnf 11263 df-xr 11264 df-ltxr 11265 df-le 11266 df-sub 11460 df-neg 11461 df-nn 12251 df-n0 12522 df-xnn0 12595 df-z 12609 df-uz 12881 df-fz 13554 df-hash 14387 |
| This theorem is used by: hashprlei 14525 hashtplei 14541 kur14lem8 35744 |
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