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| Mirrors > Home > ILE Home > Th. List > posdif | Unicode version | ||
| Description: Comparison of two numbers whose difference is positive. (Contributed by NM, 17-Nov-2004.) |
| Ref | Expression |
|---|---|
| posdif |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resubcl 8597 |
. . . 4
| |
| 2 | 1 | ancoms 268 |
. . 3
|
| 3 | simpl 109 |
. . 3
| |
| 4 | ltaddpos 8787 |
. . 3
| |
| 5 | 2, 3, 4 | syl2anc 415 |
. 2
|
| 6 | recn 8318 |
. . . 4
| |
| 7 | recn 8318 |
. . . 4
| |
| 8 | pncan3 8541 |
. . . 4
| |
| 9 | 6, 7, 8 | syl2an 289 |
. . 3
|
| 10 | 9 | breq2d 4143 |
. 2
|
| 11 | 5, 10 | bitr2d 189 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-distr 8289 ax-i2m1 8290 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 ax-pre-ltadd 8301 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8368 df-mnf 8369 df-ltxr 8371 df-sub 8506 df-neg 8507 |
| This theorem is used by: posdifi 8833 posdifd 8867 nnsub 9352 znnsub 9707 difrp 10110 xposdif 10301 eluzgtdifelfzo 10632 subfzo0 10678 pfxccatin12lem3 11526 efltim 12490 cos01gt0 12555 ndvdsadd 12723 nn0seqcvgd 12844 sinq12gt0 16057 cosq14gt0 16059 logdivlti 16111 perfectlem2 16300 |
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