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| Description: Closure of the distance function of a metric space. Part of Property M1 of [Kreyszig] p. 3. |
| Ref | Expression |
|---|---|
| metf.1 |
|
| Ref | Expression |
|---|---|
| metcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | foprrn 4035 |
. 2
| |
| 2 | metf.1 |
. . 3
| |
| 3 | 2 | metf 7807 |
. 2
|
| 4 | 1, 3 | syl3an1 859 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: metsym 7816 metge0 7819 metgt0 7820 metxplem1 7826 metxplem2 7827 metxplem3 7828 metxp 7834 bl2in 7843 blin 7852 blss 7853 ssbl 7855 methausi 7881 metcnpi3 7892 metcnpi4 7893 metcni2 7895 lmnn 7935 iscau3 7938 iscau4 7940 lmuni 7951 lmle 7960 xplmi 7973 xpcn 7976 lmcau 7996 bcthlem20 8018 bcthlem21 8019 bcthlem24 8022 bcthlem25 8023 blocni 8465 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-sep 2703 ax-pow 2742 ax-pr 2779 ax-un 2866 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-ral 1649 df-rex 1650 df-v 1812 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-op 2416 df-uni 2504 df-br 2620 df-opab 2667 df-id 2835 df-xp 3184 df-rel 3185 df-cnv 3186 df-co 3187 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fun 3192 df-fn 3193 df-f 3194 df-fv 3198 df-opr 3965 df-met 7793 |