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| Mirrors > Home > ILE Home > Th. List > sotr | GIF version | ||
| Description: A strict order relation is a transitive relation. (Contributed by NM, 21-Jan-1996.) |
| Ref | Expression |
|---|---|
| sotr | ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴 ∧ 𝐷 ∈ 𝐴)) → ((𝐵𝑅𝐶 ∧ 𝐶𝑅𝐷) → 𝐵𝑅𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sopo 4410 | . 2 ⊢ (𝑅 Or 𝐴 → 𝑅 Po 𝐴) | |
| 2 | potr 4405 | . 2 ⊢ ((𝑅 Po 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴 ∧ 𝐷 ∈ 𝐴)) → ((𝐵𝑅𝐶 ∧ 𝐶𝑅𝐷) → 𝐵𝑅𝐷)) | |
| 3 | 1, 2 | sylan 283 | 1 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴 ∧ 𝐷 ∈ 𝐴)) → ((𝐵𝑅𝐶 ∧ 𝐶𝑅𝐷) → 𝐵𝑅𝐷)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 1004 ∈ wcel 2202 class class class wbr 4088 Po wpo 4391 Or wor 4392 |
| 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-po 4393 df-iso 4394 |
| This theorem is referenced by: sotri 5132 cauappcvgprlemdisj 7870 suplocexprlemru 7938 |
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