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| Mirrors > Home > ILE Home > Th. List > lemul1a | Unicode version | ||
| Description: Multiplication of both sides of 'less than or equal to' by a nonnegative number. Part of Definition 11.2.7(vi) of [HoTT], p. (varies). (Contributed by NM, 21-Feb-2005.) |
| Ref | Expression |
|---|---|
| lemul1a |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl2 1003 |
. . . . 5
| |
| 2 | simpl1 1002 |
. . . . 5
| |
| 3 | 1, 2 | resubcld 8409 |
. . . 4
|
| 4 | simpl3l 1054 |
. . . 4
| |
| 5 | simpr 110 |
. . . . 5
| |
| 6 | 1, 2 | subge0d 8564 |
. . . . 5
|
| 7 | 5, 6 | mpbird 167 |
. . . 4
|
| 8 | simpl3r 1055 |
. . . 4
| |
| 9 | 3, 4, 7, 8 | mulge0d 8650 |
. . 3
|
| 10 | 1 | recnd 8057 |
. . . 4
|
| 11 | 2 | recnd 8057 |
. . . 4
|
| 12 | 4 | recnd 8057 |
. . . 4
|
| 13 | 10, 11, 12 | subdird 8443 |
. . 3
|
| 14 | 9, 13 | breqtrd 4060 |
. 2
|
| 15 | 1, 4 | remulcld 8059 |
. . 3
|
| 16 | 2, 4 | remulcld 8059 |
. . 3
|
| 17 | 15, 16 | subge0d 8564 |
. 2
|
| 18 | 14, 17 | mpbid 147 |
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 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4152 ax-pow 4208 ax-pr 4243 ax-un 4469 ax-setind 4574 ax-cnex 7972 ax-resscn 7973 ax-1cn 7974 ax-1re 7975 ax-icn 7976 ax-addcl 7977 ax-addrcl 7978 ax-mulcl 7979 ax-mulrcl 7980 ax-addcom 7981 ax-mulcom 7982 ax-addass 7983 ax-mulass 7984 ax-distr 7985 ax-i2m1 7986 ax-0lt1 7987 ax-1rid 7988 ax-0id 7989 ax-rnegex 7990 ax-precex 7991 ax-cnre 7992 ax-pre-ltirr 7993 ax-pre-ltwlin 7994 ax-pre-lttrn 7995 ax-pre-apti 7996 ax-pre-ltadd 7997 ax-pre-mulgt0 7998 ax-pre-mulext 7999 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-nel 2463 df-ral 2480 df-rex 2481 df-reu 2482 df-rab 2484 df-v 2765 df-sbc 2990 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-br 4035 df-opab 4096 df-id 4329 df-po 4332 df-iso 4333 df-xp 4670 df-rel 4671 df-cnv 4672 df-co 4673 df-dm 4674 df-iota 5220 df-fun 5261 df-fv 5267 df-riota 5878 df-ov 5926 df-oprab 5927 df-mpo 5928 df-pnf 8065 df-mnf 8066 df-xr 8067 df-ltxr 8068 df-le 8069 df-sub 8201 df-neg 8202 df-reap 8604 df-ap 8611 |
| This theorem is referenced by: lemul2a 8888 ltmul12a 8889 lemul12b 8890 lt2msq1 8914 lemul1ad 8968 facavg 10840 resqrexlemover 11177 mulcn2 11479 eftlub 11857 |
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