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| Mirrors > Home > MPE Home > Th. List > hashdomi | Structured version Visualization version GIF version | ||
| Description: Non-strict order relation of the ♯ function on the full cardinal poset. (Contributed by Stefan O'Rear, 12-Sep-2015.) |
| Ref | Expression |
|---|---|
| hashdomi | ⊢ (𝐴 ≼ 𝐵 → (♯‘𝐴) ≤ (♯‘𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl 487 | . . 3 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐴 ∈ Fin) → 𝐴 ≼ 𝐵) | |
| 2 | simpr 489 | . . . 4 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐴 ∈ Fin) → 𝐴 ∈ Fin) | |
| 3 | reldom 8937 | . . . . . 6 ⊢ Rel ≼ | |
| 4 | 3 | brrelex2i 5708 | . . . . 5 ⊢ (𝐴 ≼ 𝐵 → 𝐵 ∈ V) |
| 5 | 4 | adantr 485 | . . . 4 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐴 ∈ Fin) → 𝐵 ∈ V) |
| 6 | hashdom 14403 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ 𝐵 ∈ V) → ((♯‘𝐴) ≤ (♯‘𝐵) ↔ 𝐴 ≼ 𝐵)) | |
| 7 | 2, 5, 6 | syl2anc 595 | . . 3 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐴 ∈ Fin) → ((♯‘𝐴) ≤ (♯‘𝐵) ↔ 𝐴 ≼ 𝐵)) |
| 8 | 1, 7 | mpbird 260 | . 2 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐴 ∈ Fin) → (♯‘𝐴) ≤ (♯‘𝐵)) |
| 9 | pnfxr 11251 | . . . 4 ⊢ +∞ ∈ ℝ* | |
| 10 | pnfge 13143 | . . . 4 ⊢ (+∞ ∈ ℝ* → +∞ ≤ +∞) | |
| 11 | 9, 10 | mp1i 14 | . . 3 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → +∞ ≤ +∞) |
| 12 | 3 | brrelex1i 5707 | . . . 4 ⊢ (𝐴 ≼ 𝐵 → 𝐴 ∈ V) |
| 13 | hashinf 14359 | . . . 4 ⊢ ((𝐴 ∈ V ∧ ¬ 𝐴 ∈ Fin) → (♯‘𝐴) = +∞) | |
| 14 | 12, 13 | sylan 591 | . . 3 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → (♯‘𝐴) = +∞) |
| 15 | 4 | adantr 485 | . . . 4 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → 𝐵 ∈ V) |
| 16 | domfi 9161 | . . . . 5 ⊢ ((𝐵 ∈ Fin ∧ 𝐴 ≼ 𝐵) → 𝐴 ∈ Fin) | |
| 17 | 16 | stoic1b 1796 | . . . 4 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → ¬ 𝐵 ∈ Fin) |
| 18 | hashinf 14359 | . . . 4 ⊢ ((𝐵 ∈ V ∧ ¬ 𝐵 ∈ Fin) → (♯‘𝐵) = +∞) | |
| 19 | 15, 17, 18 | syl2anc 595 | . . 3 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → (♯‘𝐵) = +∞) |
| 20 | 11, 14, 19 | 3brtr4d 5136 | . 2 ⊢ ((𝐴 ≼ 𝐵 ∧ ¬ 𝐴 ∈ Fin) → (♯‘𝐴) ≤ (♯‘𝐵)) |
| 21 | 8, 20 | pm2.61dan 824 | 1 ⊢ (𝐴 ≼ 𝐵 → (♯‘𝐴) ≤ (♯‘𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1563 ∈ wcel 2145 Vcvv 3457 class class class wbr 5104 ‘cfv 6525 ≼ cdom 8929 Fincfn 8931 +∞cpnf 11228 ℝ*cxr 11230 ≤ cle 11232 ♯chash 14354 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5250 ax-nul 5260 ax-pow 5326 ax-pr 5394 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-int 4908 df-iun 4953 df-br 5105 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6291 df-ord 6352 df-on 6353 df-lim 6354 df-suc 6355 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-oadd 8445 df-er 8682 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-card 9913 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-nn 12222 df-n0 12493 df-xnn0 12566 df-z 12580 df-uz 12851 df-fz 13524 df-hash 14355 |
| This theorem is referenced by: hashge0 14411 o1fsum 15853 incexc2 15880 usgriedgleord 29483 uspgredgleord 29487 esumcst 34365 aks6d1c6lem5 42801 idomodle 43775 |
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