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Mirrors > Home > ILE Home > Th. List > 5re | GIF version |
Description: The number 5 is real. (Contributed by NM, 27-May-1999.) |
Ref | Expression |
---|---|
5re | ⊢ 5 ∈ ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-5 8547 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4re 8562 | . . 3 ⊢ 4 ∈ ℝ | |
3 | 1re 7550 | . . 3 ⊢ 1 ∈ ℝ | |
4 | 2, 3 | readdcli 7564 | . 2 ⊢ (4 + 1) ∈ ℝ |
5 | 1, 4 | eqeltri 2161 | 1 ⊢ 5 ∈ ℝ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1439 (class class class)co 5668 ℝcr 7412 1c1 7414 + caddc 7416 4c4 8538 5c5 8539 |
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-5 1382 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-4 1446 ax-17 1465 ax-ial 1473 ax-ext 2071 ax-1re 7502 ax-addrcl 7505 |
This theorem depends on definitions: df-bi 116 df-cleq 2082 df-clel 2085 df-2 8544 df-3 8545 df-4 8546 df-5 8547 |
This theorem is referenced by: 5cn 8565 6re 8566 6pos 8586 3lt5 8655 2lt5 8656 1lt5 8657 5lt6 8658 4lt6 8659 5lt7 8664 4lt7 8665 5lt8 8671 4lt8 8672 5lt9 8679 4lt9 8680 5lt10 9074 4lt10 9075 ef01bndlem 11110 |
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