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| Mirrors > Home > MPE Home > Th. List > z12sex | Structured version Visualization version GIF version | ||
| Description: The class of dyadic fractions is a set. (Contributed by Scott Fenton, 7-Aug-2025.) |
| Ref | Expression |
|---|---|
| z12sex | ⊢ ℤs[1/2] ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-z12s 28407 | . 2 ⊢ ℤs[1/2] = {𝑥 ∣ ∃𝑦 ∈ ℤs ∃𝑧 ∈ ℕ0s 𝑥 = (𝑦 /su (2s↑s𝑧))} | |
| 2 | zsex 28372 | . . 3 ⊢ ℤs ∈ V | |
| 3 | n0sex 28309 | . . 3 ⊢ ℕ0s ∈ V | |
| 4 | 2, 3 | ab2rexex 7932 | . 2 ⊢ {𝑥 ∣ ∃𝑦 ∈ ℤs ∃𝑧 ∈ ℕ0s 𝑥 = (𝑦 /su (2s↑s𝑧))} ∈ V |
| 5 | 1, 4 | eqeltri 2832 | 1 ⊢ ℤs[1/2] ∈ V |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 {cab 2714 ∃wrex 3061 Vcvv 3429 (class class class)co 7367 /su cdivs 28179 ℕ0scn0s 28304 ℤsczs 28370 2sc2s 28402 ↑scexps 28404 ℤs[1/2]cz12s 28406 |
| 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 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-inf2 9562 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-subs 28014 df-n0s 28306 df-nns 28307 df-zs 28371 df-z12s 28407 |
| This theorem is referenced by: (None) |
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