Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > eleqtrid | Structured version Visualization version GIF version |
Description: A membership and equality inference. (Contributed by NM, 4-Jan-2006.) |
Ref | Expression |
---|---|
eleqtrid.1 | ⊢ 𝐴 ∈ 𝐵 |
eleqtrid.2 | ⊢ (𝜑 → 𝐵 = 𝐶) |
Ref | Expression |
---|---|
eleqtrid | ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleqtrid.1 | . . 3 ⊢ 𝐴 ∈ 𝐵 | |
2 | 1 | a1i 11 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝐵) |
3 | eleqtrid.2 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) | |
4 | 2, 3 | eleqtrd 2915 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2114 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-cleq 2814 df-clel 2893 |
This theorem is referenced by: eleqtrrid 2920 opth1 5367 opth 5368 eqelsuc 6272 tfrlem11 8024 oalimcl 8186 omlimcl 8204 frgp0 18886 txdis 22240 ordtconnlem1 31167 rankeq1o 33632 |
Copyright terms: Public domain | W3C validator |