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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 7747 | . . 3 ⊢ 1P = 〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉 | |
| 2 | 1 | fveq2i 5651 | . 2 ⊢ (2nd ‘1P) = (2nd ‘〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉) |
| 3 | ltnqex 7829 | . . 3 ⊢ {𝑦 ∣ 𝑦 <Q 1Q} ∈ V | |
| 4 | gtnqex 7830 | . . 3 ⊢ {𝑥 ∣ 1Q <Q 𝑥} ∈ V | |
| 5 | 3, 4 | op2nd 6319 | . 2 ⊢ (2nd ‘〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉) = {𝑥 ∣ 1Q <Q 𝑥} |
| 6 | 2, 5 | eqtri 2252 | 1 ⊢ (2nd ‘1P) = {𝑥 ∣ 1Q <Q 𝑥} |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 {cab 2217 〈cop 3676 class class class wbr 4093 ‘cfv 5333 2nd c2nd 6311 1Qc1q 7561 <Q cltq 7565 1Pc1p 7572 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-coll 4209 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-iinf 4692 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-iom 4695 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-2nd 6313 df-qs 6751 df-ni 7584 df-nqqs 7628 df-ltnqqs 7633 df-i1p 7747 |
| This theorem is referenced by: 1idpru 7871 recexprlem1ssu 7914 recexprlemss1u 7916 |
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