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Mirrors > Home > ILE Home > Th. List > 4lt6 | GIF version |
Description: 4 is less than 6. (Contributed by Mario Carneiro, 15-Sep-2013.) |
Ref | Expression |
---|---|
4lt6 | ⊢ 4 < 6 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 4lt5 8799 | . 2 ⊢ 4 < 5 | |
2 | 5lt6 8803 | . 2 ⊢ 5 < 6 | |
3 | 4re 8707 | . . 3 ⊢ 4 ∈ ℝ | |
4 | 5re 8709 | . . 3 ⊢ 5 ∈ ℝ | |
5 | 6re 8711 | . . 3 ⊢ 6 ∈ ℝ | |
6 | 3, 4, 5 | lttri 7791 | . 2 ⊢ ((4 < 5 ∧ 5 < 6) → 4 < 6) |
7 | 1, 2, 6 | mp2an 420 | 1 ⊢ 4 < 6 |
Colors of variables: wff set class |
Syntax hints: class class class wbr 3895 < clt 7724 4c4 8683 5c5 8684 6c6 8685 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 586 ax-in2 587 ax-io 681 ax-5 1406 ax-7 1407 ax-gen 1408 ax-ie1 1452 ax-ie2 1453 ax-8 1465 ax-10 1466 ax-11 1467 ax-i12 1468 ax-bndl 1469 ax-4 1470 ax-13 1474 ax-14 1475 ax-17 1489 ax-i9 1493 ax-ial 1497 ax-i5r 1498 ax-ext 2097 ax-sep 4006 ax-pow 4058 ax-pr 4091 ax-un 4315 ax-setind 4412 ax-cnex 7636 ax-resscn 7637 ax-1cn 7638 ax-1re 7639 ax-icn 7640 ax-addcl 7641 ax-addrcl 7642 ax-mulcl 7643 ax-addcom 7645 ax-addass 7647 ax-i2m1 7650 ax-0lt1 7651 ax-0id 7653 ax-rnegex 7654 ax-pre-lttrn 7659 ax-pre-ltadd 7661 |
This theorem depends on definitions: df-bi 116 df-3an 947 df-tru 1317 df-fal 1320 df-nf 1420 df-sb 1719 df-eu 1978 df-mo 1979 df-clab 2102 df-cleq 2108 df-clel 2111 df-nfc 2244 df-ne 2283 df-nel 2378 df-ral 2395 df-rex 2396 df-rab 2399 df-v 2659 df-dif 3039 df-un 3041 df-in 3043 df-ss 3050 df-pw 3478 df-sn 3499 df-pr 3500 df-op 3502 df-uni 3703 df-br 3896 df-opab 3950 df-xp 4505 df-iota 5046 df-fv 5089 df-ov 5731 df-pnf 7726 df-mnf 7727 df-ltxr 7729 df-2 8689 df-3 8690 df-4 8691 df-5 8692 df-6 8693 |
This theorem is referenced by: 3lt6 8805 |
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