| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ordtr1 | Structured version Visualization version GIF version | ||
| Description: Transitive law for ordinal classes. (Contributed by NM, 12-Dec-2004.) |
| Ref | Expression |
|---|---|
| ordtr1 | ⊢ (Ord 𝐶 → ((𝐴 ∈ 𝐵 ∧ 𝐵 ∈ 𝐶) → 𝐴 ∈ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ordtr 6402 | . 2 ⊢ (Ord 𝐶 → Tr 𝐶) | |
| 2 | trel 5226 | . 2 ⊢ (Tr 𝐶 → ((𝐴 ∈ 𝐵 ∧ 𝐵 ∈ 𝐶) → 𝐴 ∈ 𝐶)) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (Ord 𝐶 → ((𝐴 ∈ 𝐵 ∧ 𝐵 ∈ 𝐶) → 𝐴 ∈ 𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2147 Tr wtr 5218 Ord word 6387 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 df-ss 3901 df-uni 4873 df-tr 5219 df-ord 6391 |
| This theorem is used by: ontr1 6436 dfsmo2 8393 smores2 8400 smoel 8406 smogt 8413 ordiso2 9546 r1ordg 9822 r1pwss 9828 r1val1 9830 rankr1ai 9843 rankval3b 9873 rankonidlem 9875 onssr1 9880 r1filimi 9940 cofsmo 10386 fpwwe2lem8 10762 nosepssdm 28100 bnj1098 35525 bnj594 35653 rankfilimb 35853 |
| Copyright terms: Public domain | W3C validator |