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Mirrors > Home > ILE Home > Th. List > 1pru | GIF version |
Description: The upper cut of the positive real number 'one'. (Contributed by Jim Kingdon, 28-Dec-2019.) |
Ref | Expression |
---|---|
1pru | ⊢ (2nd ‘1P) = {𝑥 ∣ 1Q <Q 𝑥} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i1p 7466 | . . 3 ⊢ 1P = ⟨{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}⟩ | |
2 | 1 | fveq2i 5519 | . 2 ⊢ (2nd ‘1P) = (2nd ‘⟨{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}⟩) |
3 | ltnqex 7548 | . . 3 ⊢ {𝑦 ∣ 𝑦 <Q 1Q} ∈ V | |
4 | gtnqex 7549 | . . 3 ⊢ {𝑥 ∣ 1Q <Q 𝑥} ∈ V | |
5 | 3, 4 | op2nd 6148 | . 2 ⊢ (2nd ‘⟨{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}⟩) = {𝑥 ∣ 1Q <Q 𝑥} |
6 | 2, 5 | eqtri 2198 | 1 ⊢ (2nd ‘1P) = {𝑥 ∣ 1Q <Q 𝑥} |
Colors of variables: wff set class |
Syntax hints: = wceq 1353 {cab 2163 ⟨cop 3596 class class class wbr 4004 ‘cfv 5217 2nd c2nd 6140 1Qc1q 7280 <Q cltq 7284 1Pc1p 7291 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-coll 4119 ax-sep 4122 ax-pow 4175 ax-pr 4210 ax-un 4434 ax-iinf 4588 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2740 df-sbc 2964 df-csb 3059 df-dif 3132 df-un 3134 df-in 3136 df-ss 3143 df-pw 3578 df-sn 3599 df-pr 3600 df-op 3602 df-uni 3811 df-int 3846 df-iun 3889 df-br 4005 df-opab 4066 df-mpt 4067 df-id 4294 df-iom 4591 df-xp 4633 df-rel 4634 df-cnv 4635 df-co 4636 df-dm 4637 df-rn 4638 df-res 4639 df-ima 4640 df-iota 5179 df-fun 5219 df-fn 5220 df-f 5221 df-f1 5222 df-fo 5223 df-f1o 5224 df-fv 5225 df-2nd 6142 df-qs 6541 df-ni 7303 df-nqqs 7347 df-ltnqqs 7352 df-i1p 7466 |
This theorem is referenced by: 1idpru 7590 recexprlem1ssu 7633 recexprlemss1u 7635 |
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