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| Mirrors > Home > MPE Home > Th. List > zq | Structured version Visualization version GIF version | ||
| Description: An integer is a rational number. (Contributed by NM, 9-Jan-2002.) (Proof shortened by Steven Nguyen, 23-Mar-2023.) |
| Ref | Expression |
|---|---|
| zq | ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℚ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zcn 12698 | . . 3 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℂ) | |
| 2 | 1 | div1d 12085 | . 2 ⊢ (𝐴 ∈ ℤ → (𝐴 / 1) = 𝐴) |
| 3 | 1nn 12346 | . . 3 ⊢ 1 ∈ ℕ | |
| 4 | znq 13079 | . . 3 ⊢ ((𝐴 ∈ ℤ ∧ 1 ∈ ℕ) → (𝐴 / 1) ∈ ℚ) | |
| 5 | 3, 4 | mpan2 704 | . 2 ⊢ (𝐴 ∈ ℤ → (𝐴 / 1) ∈ ℚ) |
| 6 | 2, 5 | eqeltrrd 2862 | 1 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℚ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 (class class class)co 7420 1c1 11201 / cdiv 11973 ℕcn 12335 ℤcz 12693 ℚcq 13075 |
| 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 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 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-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 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 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-nn 12336 df-z 12694 df-q 13076 |
| This theorem is used by: zssq 13083 qbtwnxr 13330 modirr 14085 qexpcl 14220 qexpclz 14224 zsqrtelqelz 16934 pczpre 17025 pc0 17032 pcrec 17036 pcdvdstr 17054 pcgcd1 17055 pcgcd 17056 pc2dvds 17057 pc11 17058 sylow1lem1 19812 vitalilem1 25929 elqaalem1 26642 elqaalem3 26644 qaa 26647 2irrexpq 27059 zrtelqelz 27086 2logb9irrALT 27126 2irrexpqALT 27128 lgsneg 27648 lgsdilem2 27660 lgsne0 27662 2sq2 27760 qabvle 27952 ostthlem1 27954 ostthlem2 27955 padicabv 27957 ostth2lem2 27961 ostth2 27964 ostth3 27965 znumd 33404 zdend 33405 2sqr3minply 34412 cos9thpiminplylem6 34419 cos9thpiminply 34420 qqhucn 34624 irrdifflemf 38246 irrdiff 38247 qdiff 38248 mblfinlem1 38575 aks4d1p7d1 43132 oexpreposd 43379 rmxypairf1o 43917 rmxycomplete 43923 rmxyadd 43927 rmxy1 43928 mpaaeu 44151 sqrtnzqaa 47913 aacllem 50938 |
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