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Mirrors > Home > ILE Home > Th. List > rpssre | GIF version |
Description: The positive reals are a subset of the reals. (Contributed by NM, 24-Feb-2008.) |
Ref | Expression |
---|---|
rpssre | ⊢ ℝ+ ⊆ ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpre 9477 | . 2 ⊢ (𝑥 ∈ ℝ+ → 𝑥 ∈ ℝ) | |
2 | 1 | ssriv 3106 | 1 ⊢ ℝ+ ⊆ ℝ |
Colors of variables: wff set class |
Syntax hints: ⊆ wss 3076 ℝcr 7643 ℝ+crp 9470 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-rab 2426 df-in 3082 df-ss 3089 df-rp 9471 |
This theorem is referenced by: rpred 9513 rpexpcl 10343 resqrexlemcvg 10823 resqrexlemsqa 10828 fsumrpcl 11205 |
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