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Related theorems Unicode version |
| Description: A Hausdorff space is a topology. |
| Ref | Expression |
|---|---|
| haustop |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 1478 |
. . 3
| |
| 2 | 1 | ishaus 7780 |
. 2
|
| 3 | 2 | pm3.26bi 322 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sncld 7784 dnsconst 7785 t2t1 10587 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-12 970 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 983 df-sb 1174 df-clab 1467 df-cleq 1472 df-clel 1475 df-ral 1652 df-rex 1653 df-rab 1655 df-v 1815 df-uni 2508 df-haus 7779 |