| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > resubcli | Unicode version | ||
| Description: Closure law for subtraction of reals. (Contributed by NM, 17-Jan-1997.) (Revised by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| renegcl.1 |
|
| resubcl.2 |
|
| Ref | Expression |
|---|---|
| resubcli |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | renegcl.1 |
. . . 4
| |
| 2 | 1 | recni 8179 |
. . 3
|
| 3 | resubcl.2 |
. . . 4
| |
| 4 | 3 | recni 8179 |
. . 3
|
| 5 | negsub 8415 |
. . 3
| |
| 6 | 2, 4, 5 | mp2an 426 |
. 2
|
| 7 | 3 | renegcli 8429 |
. . 3
|
| 8 | 1, 7 | readdcli 8180 |
. 2
|
| 9 | 6, 8 | eqeltrri 2303 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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-14 2203 ax-ext 2211 ax-sep 4203 ax-pow 4260 ax-pr 4295 ax-setind 4631 ax-resscn 8112 ax-1cn 8113 ax-icn 8115 ax-addcl 8116 ax-addrcl 8117 ax-mulcl 8118 ax-addcom 8120 ax-addass 8122 ax-distr 8124 ax-i2m1 8125 ax-0id 8128 ax-rnegex 8129 ax-cnre 8131 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 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-ne 2401 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2802 df-sbc 3030 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3890 df-br 4085 df-opab 4147 df-id 4386 df-xp 4727 df-rel 4728 df-cnv 4729 df-co 4730 df-dm 4731 df-iota 5282 df-fun 5324 df-fv 5330 df-riota 5964 df-ov 6014 df-oprab 6015 df-mpo 6016 df-sub 8340 df-neg 8341 |
| This theorem is referenced by: 0reALT 8464 |
| Copyright terms: Public domain | W3C validator |