| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7654 | . . 3 ⊢ 1P = 〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉 | |
| 2 | 1 | fveq2i 5630 | . 2 ⊢ (2nd ‘1P) = (2nd ‘〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉) |
| 3 | ltnqex 7736 | . . 3 ⊢ {𝑦 ∣ 𝑦 <Q 1Q} ∈ V | |
| 4 | gtnqex 7737 | . . 3 ⊢ {𝑥 ∣ 1Q <Q 𝑥} ∈ V | |
| 5 | 3, 4 | op2nd 6293 | . 2 ⊢ (2nd ‘〈{𝑦 ∣ 𝑦 <Q 1Q}, {𝑥 ∣ 1Q <Q 𝑥}〉) = {𝑥 ∣ 1Q <Q 𝑥} |
| 6 | 2, 5 | eqtri 2250 | 1 ⊢ (2nd ‘1P) = {𝑥 ∣ 1Q <Q 𝑥} |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1395 {cab 2215 〈cop 3669 class class class wbr 4083 ‘cfv 5318 2nd c2nd 6285 1Qc1q 7468 <Q cltq 7472 1Pc1p 7479 |
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4199 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-iinf 4680 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-id 4384 df-iom 4683 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-ima 4732 df-iota 5278 df-fun 5320 df-fn 5321 df-f 5322 df-f1 5323 df-fo 5324 df-f1o 5325 df-fv 5326 df-2nd 6287 df-qs 6686 df-ni 7491 df-nqqs 7535 df-ltnqqs 7540 df-i1p 7654 |
| This theorem is referenced by: 1idpru 7778 recexprlem1ssu 7821 recexprlemss1u 7823 |
| Copyright terms: Public domain | W3C validator |